This is a table of type quadgram and their frequencies. Use it to search & browse the list to learn more about your study carrel.
quadgram | frequency |
---|---|
as shown in fig | 48 |
the resistance of the | 42 |
by means of the | 34 |
by means of a | 27 |
the end of the | 25 |
the direction of the | 23 |
a current of electricity | 22 |
in the case of | 22 |
the value of the | 22 |
the ends of the | 21 |
in series with the | 21 |
the strength of the | 20 |
is shown in fig | 20 |
the current in the | 19 |
in the direction of | 17 |
as shown in the | 17 |
the voltage of the | 16 |
it will be seen | 16 |
the surface of the | 15 |
one terminal of the | 15 |
is connected to the | 15 |
the speed of the | 14 |
the position of the | 14 |
the terminals of the | 14 |
leeds and northrup fault | 13 |
it is necessary to | 13 |
the other end of | 13 |
and northrup fault finder | 13 |
will be seen that | 13 |
in the opposite direction | 12 |
other end of the | 12 |
the whole of the | 12 |
on the other hand | 12 |
in the armature circuit | 11 |
current passes through the | 11 |
as shown by the | 11 |
the north pole of | 11 |
are connected in series | 11 |
the action of the | 11 |
for the purpose of | 11 |
the deflection of the | 11 |
the insulation of the | 11 |
sparking at the brushes | 11 |
the top of the | 11 |
what should be done | 11 |
insulated from each other | 10 |
in contact with the | 10 |
it consists of a | 10 |
with leeds and northrup | 10 |
the length of the | 10 |
deflection of the needle | 10 |
current passing through the | 10 |
surface of the commutator | 10 |
the bottom of the | 10 |
strength of the current | 10 |
in the form of | 10 |
a current passes through | 9 |
will be necessary to | 9 |
the other terminal of | 9 |
so as to be | 9 |
connected in series with | 9 |
direction of the current | 9 |
magnetic lines of force | 9 |
north pole of the | 9 |
the resistance in the | 9 |
it will be necessary | 9 |
to that of the | 9 |
shown in the figure | 9 |
at right angles to | 9 |
speed of the motor | 9 |
the upper end of | 9 |
one end of the | 9 |
into contact with the | 9 |
in making the test | 8 |
of the unknown resistance | 8 |
so that it is | 8 |
the center of the | 8 |
the lines of force | 8 |
and the other to | 8 |
care should be taken | 8 |
a large number of | 8 |
end of the base | 8 |
the brushes should be | 8 |
other terminal of the | 8 |
is attached to the | 8 |
one or more of | 8 |
of the standard cell | 8 |
number of turns of | 8 |
resistance in the armature | 8 |
the current to be | 8 |
for the reason that | 8 |
the direction of rotation | 8 |
adjustment of the brushes | 8 |
fall of potential method | 8 |
how to make a | 8 |
when a current passes | 8 |
the operation of the | 8 |
passage of a current | 8 |
the passage of a | 8 |
in the same direction | 8 |
as soon as the | 8 |
cut out of circuit | 8 |
deflection of the galvanometer | 8 |
the coils of the | 8 |
the current passing through | 8 |
with respect to the | 7 |
the current from the | 7 |
or more of the | 7 |
terminal of the galvanometer | 7 |
with queen acme set | 7 |
was found to be | 7 |
be said with respect | 7 |
one of the coils | 7 |
a dynamo or motor | 7 |
of the magnetic field | 7 |
the needle will be | 7 |
is provided with a | 7 |
may be said with | 7 |
the plane of the | 7 |
should be done if | 7 |
is proportional to the | 7 |
galvanometer shows no deflection | 7 |
the effect of the | 7 |
when a current is | 7 |
current of electricity is | 7 |
of an electric current | 7 |
the movement of the | 7 |
to pass through the | 7 |
be connected to the | 7 |
what may be said | 7 |
the quantity of electricity | 7 |
the main switch is | 7 |
directly proportional to the | 7 |
said with respect to | 7 |
resistance of the loop | 7 |
each of the machines | 7 |
of the testing set | 7 |
of the field coils | 7 |
when the machine is | 7 |
at the other end | 7 |
this is done by | 7 |
value of the unknown | 7 |
may be due to | 7 |
method of testing resistances | 7 |
it is advisable to | 7 |
in a magnetic field | 7 |
of two or more | 7 |
the resistances of the | 7 |
is only necessary to | 6 |
the pressure of the | 6 |
resistance in series with | 6 |
a deflection of the | 6 |
right angles to the | 6 |
in order that the | 6 |
breaks in armature circuit | 6 |
the testing set battery | 6 |
is equal to the | 6 |
upper end of the | 6 |
of the instrument is | 6 |
when a current of | 6 |
end of the magnet | 6 |
the height of the | 6 |
of the permanent magnet | 6 |
that it may be | 6 |
the machine should be | 6 |
should be carefully examined | 6 |
diagram showing method of | 6 |
pole of the needle | 6 |
thompson watt hour meter | 6 |
is liable to be | 6 |
it will be found | 6 |
so long as the | 6 |
end of the armature | 6 |
part of the current | 6 |
end of the case | 6 |
of each of the | 6 |
current to pass through | 6 |
the lever of the | 6 |
a was found to | 6 |
is the difference between | 6 |
through the field coils | 6 |
on account of the | 6 |
the diameter of the | 6 |
if the machine be | 6 |
with no voltage release | 6 |
the fields of the | 6 |
be cut out of | 6 |
in the same way | 6 |
at the same time | 6 |
the positive terminal of | 6 |
what is the difference | 6 |
resistance in the rheostat | 6 |
sections of the field | 6 |
of the starting rheostat | 6 |
to be measured is | 6 |
at the point where | 6 |
out of the armature | 6 |
the no voltage release | 6 |
it is only necessary | 6 |
may be used to | 6 |
a bar of iron | 6 |
resistance of the voltmeter | 6 |
of the galvanometer needle | 6 |
the lower end of | 6 |
heating of the armature | 6 |
current flows through the | 6 |
in series with a | 6 |
connected as in fig | 6 |
contact with the commutator | 6 |
to the off position | 6 |
the number of turns | 6 |
the axis of the | 6 |
means of the hand | 6 |
lower end of the | 6 |
of the galvanometer is | 6 |
strength of the field | 6 |
as well as the | 6 |
current to be measured | 6 |
equal to that of | 6 |
the commutator and brushes | 6 |
are shown in fig | 6 |
in circuit with the | 6 |
being connected to the | 5 |
to the bottom of | 5 |
if there be a | 5 |
are connected up with | 5 |
when the galvanometer is | 5 |
of leeds and northrup | 5 |
by means of an | 5 |
the same as in | 5 |
the motion of the | 5 |
will be found to | 5 |
into and out of | 5 |
of the battery is | 5 |
one side of the | 5 |
connected up with the | 5 |
is placed in the | 5 |
of the good wire | 5 |
the brushes and commutator | 5 |
from end to end | 5 |
starter with no voltage | 5 |
rear end of the | 5 |
the first and second | 5 |
needle will be deflected | 5 |
the rear end of | 5 |
the amount of current | 5 |
resistance in the circuit | 5 |
compound dynamos in parallel | 5 |
when the key is | 5 |
used in connection with | 5 |
by inserting resistance in | 5 |
to the end of | 5 |
the reading a was | 5 |
if it be desired | 5 |
the middle of the | 5 |
of the broken wire | 5 |
the voltage of a | 5 |
of the needle will | 5 |
is passed through the | 5 |
no voltage and overload | 5 |
to the binding post | 5 |
as in the case | 5 |
is indicated by the | 5 |
in an electric circuit | 5 |
the resistance between the | 5 |
it be desired to | 5 |
height of the water | 5 |
is connected in series | 5 |
may be made to | 5 |
of all the dynamos | 5 |
to the south pole | 5 |
positive terminal of the | 5 |
to the bus bars | 5 |
in proportion to the | 5 |
the temperature of the | 5 |
the machine will not | 5 |
against the restraining force | 5 |
of the field winding | 5 |
so as to form | 5 |
made by means of | 5 |
lever of the starting | 5 |
to the terminals of | 5 |
showing method of coupling | 5 |
it is obvious that | 5 |
the resistance being tested | 5 |
reading a was found | 5 |
inserting resistance in the | 5 |
what is the effect | 5 |
the edge of the | 5 |
of the hand regulator | 5 |
the back of the | 5 |
made as in fig | 5 |
a deflection of one | 5 |
may be remedied by | 5 |
with no voltage and | 5 |
the instrument may be | 5 |
the needle of a | 5 |
connected to the bus | 5 |
that it can be | 5 |
no voltage release magnet | 5 |
as it is called | 5 |
of the coils are | 5 |
the fault may be | 5 |
on the other side | 5 |
it was found that | 5 |
the ratio between the | 5 |
the magnetic field of | 5 |
is the effect of | 5 |
reduce the speed of | 5 |
the connections are made | 5 |
in connection with the | 5 |
be connected in series | 5 |
the influence of the | 5 |
the good and bad | 5 |
insulation between the segments | 5 |
voltage and overload release | 5 |
resistance is cut out | 5 |
is directly proportional to | 5 |
terminal of the battery | 5 |
of the starting box | 5 |
the direction of current | 5 |
of the brushes are | 5 |
turns of fine wire | 5 |
the current through the | 5 |
the simplest form of | 5 |
in order to determine | 5 |
of the current in | 5 |
is suspended by a | 5 |
pole of the battery | 5 |
what provision is made | 5 |
the case of the | 5 |
the same as the | 5 |
the fact that the | 5 |
what is known as | 5 |
method with queen acme | 5 |
the line post c | 4 |
with a battery and | 4 |
the base of the | 4 |
and the reading a | 4 |
switches u and v | 4 |
in which the current | 4 |
a portion of the | 4 |
the voltage between the | 4 |
the machine is started | 4 |
the connections of the | 4 |
in the pole pieces | 4 |
with which it is | 4 |
what is the indication | 4 |
the south pole of | 4 |
wide and inch thick | 4 |
wires in a cable | 4 |
just the same as | 4 |
difference of pressure between | 4 |
at the terminals of | 4 |
regulation by armature resistance | 4 |
the case of a | 4 |
between the first and | 4 |
it will not be | 4 |
to the battery post | 4 |
machine will not build | 4 |
contact with the frame | 4 |
combined armature and shunt | 4 |
liable to be short | 4 |
connected to the negative | 4 |
current of electricity passes | 4 |
the winding of the | 4 |
is enclosed in a | 4 |
the current to pass | 4 |
of the brushes and | 4 |
leeds and northrup potentiometer | 4 |
in the shunt field | 4 |
of the galvanometer will | 4 |
plane of the coil | 4 |
at one end to | 4 |
proportional to the current | 4 |
the use of the | 4 |
this is called the | 4 |
is the same as | 4 |
good and bad wires | 4 |
pieces of magnetic metal | 4 |
heavy sparking at the | 4 |
is made of a | 4 |
a current in a | 4 |
what precaution should be | 4 |
shunt and compound dynamos | 4 |
it will be understood | 4 |
magnetic action in dynamo | 4 |
which are connected to | 4 |
the resistance of a | 4 |
made as shown in | 4 |
of the base is | 4 |
comparison with a standard | 4 |
the magnetic field at | 4 |
a current is passed | 4 |
the two main conductors | 4 |
by the number of | 4 |
the credit of the | 4 |
will be understood that | 4 |
through the magnetic field | 4 |
excessive heating of the | 4 |
the broken wire and | 4 |
will be found that | 4 |
details of the armature | 4 |
be seen that the | 4 |
a current will be | 4 |
on constant voltage circuits | 4 |
the difference of pressure | 4 |
coupling series dynamos in | 4 |
the two pieces of | 4 |
no current in the | 4 |
at the distant end | 4 |
let us assume that | 4 |
are connected up in | 4 |
the resistance is cut | 4 |
be removed from the | 4 |
as indicated by the | 4 |
inserted in series with | 4 |
the current will flow | 4 |
of a magnetic needle | 4 |
current from the other | 4 |
the angle of the | 4 |
needle of the galvanometer | 4 |
be found to be | 4 |
to cut out the | 4 |
and out of parallel | 4 |
for a variation of | 4 |
the extreme right hand | 4 |
it should be noted | 4 |
the polarity of the | 4 |
division on the scale | 4 |
an increase of load | 4 |
when the dynamo is | 4 |
a few turns of | 4 |
action of the current | 4 |
is obvious that the | 4 |
order to determine the | 4 |
so that it may | 4 |
upon a magnetic needle | 4 |
the current flowing through | 4 |
the amount of resistance | 4 |
the use of a | 4 |
brought up to speed | 4 |
the current passes through | 4 |
of the commutator will | 4 |
one pole of the | 4 |
the pressure at the | 4 |
each side of the | 4 |
may be cut out | 4 |
as in the figure | 4 |
current through the field | 4 |
attention should be given | 4 |
a wide range of | 4 |
parts of the machine | 4 |
be used with a | 4 |
in the magnetic field | 4 |
the series coils of | 4 |
the armature circuit of | 4 |
direction of the darts | 4 |
current is passed through | 4 |
a part of the | 4 |
the forward end of | 4 |
be done if the | 4 |
of the cable or | 4 |
the field coils of | 4 |
the galvanometer shows no | 4 |
a charge of electricity | 4 |
a battery and galvanometer | 4 |
the water in the | 4 |
length of the cable | 4 |
the operator at station | 4 |
the galvanometer is connected | 4 |
the positive and negative | 4 |
for the current to | 4 |
direction of rotation of | 4 |
provision is made to | 4 |
is to be measured | 4 |
passing through the coil | 4 |
if the current be | 4 |
from left to right | 4 |
as the resistance of | 4 |
within the magnetic field | 4 |
connecting the field coils | 4 |
at the bus bars | 4 |
the difference of potential | 4 |
in the field coils | 4 |
end of the coil | 4 |
of the shunt resistance | 4 |
with a pair of | 4 |
the magnetic lines of | 4 |
share of the load | 4 |
that it is not | 4 |
the terminals of a | 4 |
by the dotted lines | 4 |
all the resistance is | 4 |
is capable of being | 4 |
the volume of gas | 4 |
a certain amount of | 4 |
armature and shunt field | 4 |
a column of mercury | 4 |
diameter of the coil | 4 |
which may be used | 4 |
large number of turns | 4 |
coupling compound dynamos in | 4 |
cut out of the | 4 |
produce a deflection of | 4 |
of a few turns | 4 |
made of hard rubber | 4 |
from one pole of | 4 |
of the current will | 4 |
speed at which the | 4 |
of the armature is | 4 |
volume of gas liberated | 4 |
in starting a motor | 4 |
sparking at the commutator | 4 |
frame of the machine | 4 |
the voltmeter is connected | 4 |
by the magnetic field | 4 |
the end of a | 4 |
will pass through the | 4 |
if this be not | 4 |
at the center of | 4 |
to the fault is | 4 |
connected up with a | 4 |
of the commutator and | 4 |
is equal to that | 4 |
to be short circuited | 4 |
connections are made as | 4 |
upon what does the | 4 |
is connected up with | 4 |
to do the work | 4 |
bad adjustment of the | 4 |
making hydrogen and oxygen | 4 |
they are liable to | 4 |
the insulation between the | 4 |
current in the coil | 4 |
the current flows through | 4 |
as shown in figs | 4 |
is dependent upon the | 4 |
shown in the illustration | 4 |
to the strength of | 4 |
is to be used | 4 |
dynamo into and out | 4 |
the shunt field circuit | 4 |
and one of the | 4 |
to the negative terminal | 4 |
which it is connected | 4 |
advantage is taken of | 4 |
bad adjustment of brushes | 4 |
with one of the | 4 |
be measured is passed | 4 |
current is sent through | 4 |
from right to left | 4 |
arranged as in fig | 4 |
the result is that | 4 |
the principle of the | 4 |
the unknown resistance is | 4 |
is sent through the | 4 |
so that it can | 4 |
the armature of the | 4 |
the distance to the | 4 |
is known as a | 4 |
magnetic action in motor | 4 |
to the credit of | 4 |
value of the current | 4 |
short circuits between sections | 4 |
to operate the motor | 4 |
the main knife switch | 4 |
in order to prevent | 4 |
can be obtained by | 4 |
the current may be | 4 |
in the path of | 4 |
and the other end | 4 |
with one terminal of | 4 |
at its upper end | 4 |
precaution should be taken | 4 |
are liable to be | 4 |
ends of the wire | 3 |
the n pole of | 3 |
there for about a | 3 |
by shunt field resistance | 3 |
is known as the | 3 |
to a column of | 3 |
what is called the | 3 |
by reference to fig | 3 |
the various types of | 3 |
the terminal of the | 3 |
with a large number | 3 |
brushes upon the commutator | 3 |
north pole to the | 3 |
pole to the south | 3 |
the instruments are connected | 3 |
than the perfect coils | 3 |
size of the pipe | 3 |
that it is difficult | 3 |
to multiply the potentiometer | 3 |
loop method of fault | 3 |
forward end of the | 3 |
incorrect adjustment of regulators | 3 |
such a way that | 3 |
the machine may be | 3 |
to the right or | 3 |
for about a second | 3 |
pressure at its terminals | 3 |
will not build up | 3 |
such be the case | 3 |
through the two coils | 3 |
in the armature or | 3 |
the rated capacity of | 3 |
coil will be heated | 3 |
the amount of deflection | 3 |
must be multiplied by | 3 |
shown by the darts | 3 |
test for grounded armatures | 3 |
and the long coil | 3 |
coils are wound with | 3 |
with the frame of | 3 |
instrument may be calibrated | 3 |
switch is moved to | 3 |
point in the circuit | 3 |
should be removed from | 3 |
bad condition of commutator | 3 |
voltage of the standard | 3 |
frame or core of | 3 |
the circuit when the | 3 |
the center of a | 3 |
with a binding post | 3 |
heat directly into electricity | 3 |
to see that the | 3 |
of the current to | 3 |
current will flow through | 3 |
value of the resistance | 3 |
the total length of | 3 |
on one side of | 3 |
a wire carrying a | 3 |
switch should be opened | 3 |
in the magnetic meridian | 3 |
consists essentially of a | 3 |
clean and free from | 3 |
is the result of | 3 |
of a current in | 3 |
of the angle of | 3 |
current in the series | 3 |
of an inch thick | 3 |
the total resistance of | 3 |
and shunt field resistance | 3 |
it consists of two | 3 |
the series field winding | 3 |
end of the bar | 3 |
the hand to the | 3 |
of one or more | 3 |
coil may be cut | 3 |
circuit of the motor | 3 |
of the current is | 3 |
brushes not properly adjusted | 3 |
to the tangent of | 3 |
to serve as a | 3 |
of a series of | 3 |
of the machine should | 3 |
right angles to each | 3 |
credit of the customer | 3 |
the other binding post | 3 |
and hold it there | 3 |
the rotation of the | 3 |
the tips of the | 3 |
in the middle of | 3 |
the pointer of the | 3 |
the polarities of the | 3 |
to the ground through | 3 |
is illustrated in fig | 3 |
quarter of an inch | 3 |
whole of the current | 3 |
to its original position | 3 |
resistance in the box | 3 |
resistance of the good | 3 |
due to bad adjustment | 3 |
of turns of fine | 3 |
flowing through the wire | 3 |
be used on the | 3 |
potential method with queen | 3 |
of the armature will | 3 |
more than a few | 3 |
extreme right hand dial | 3 |
for this purpose a | 3 |
from contact with the | 3 |
it consists essentially of | 3 |
all the coils of | 3 |
to produce the correct | 3 |
the battery post and | 3 |
the brushes and the | 3 |
for voltages up to | 3 |
that the machine will | 3 |
by the action of | 3 |
measuring the resistance of | 3 |
which is to be | 3 |
is moved to the | 3 |
resistance of the cable | 3 |
be stopped and the | 3 |
positive and negative poles | 3 |
across the terminals of | 3 |
one or more segments | 3 |
at one end of | 3 |
to see that they | 3 |
the pressures of the | 3 |
a dot or a | 3 |
queen acme portable testing | 3 |
this is shown in | 3 |
a change in the | 3 |
has the advantage of | 3 |
of a number of | 3 |
upon the strength of | 3 |
the battery is connected | 3 |
then the current passing | 3 |
at a distance of | 3 |
by applying the hand | 3 |
is connected with the | 3 |
hand side of the | 3 |
the essential parts are | 3 |
is the indication of | 3 |
in the position st | 3 |
the accuracy of the | 3 |
in order to make | 3 |
magneto test for grounded | 3 |
distance to the break | 3 |
tension of the springs | 3 |
for a short time | 3 |
means of the rheostat | 3 |
be shunted with the | 3 |
battery and galvanometer keys | 3 |
out of contact with | 3 |
acme portable testing set | 3 |
the reading of the | 3 |
to which it is | 3 |
series coils of the | 3 |
the tangent of the | 3 |
a difference of pressure | 3 |
shunt dynamos in parallel | 3 |
of the movable coil | 3 |
at one end a | 3 |
the strength of current | 3 |
of the needle to | 3 |
shown in the diagram | 3 |
currents may be measured | 3 |
any point in the | 3 |
there will be no | 3 |
to the sine of | 3 |
slipping of the belt | 3 |
by a current of | 3 |
of such a character | 3 |
resistance of the rheostat | 3 |
terminal of the commutator | 3 |
may be shunted with | 3 |
shunt dynamos to run | 3 |
in the operation of | 3 |
the tenths switch and | 3 |
when the plugs are | 3 |
be given to the | 3 |
so that they will | 3 |
describe the method of | 3 |
so that if we | 3 |
the ends of a | 3 |
the machine has been | 3 |
dynamos to run in | 3 |
this be the case | 3 |
and compared with the | 3 |
the north pole to | 3 |
liable to be destroyed | 3 |
is connected to a | 3 |
is due to the | 3 |
the connections between the | 3 |
side of the armature | 3 |
upper end of this | 3 |
where l is the | 3 |
that they may be | 3 |
the battery and galvanometer | 3 |
with the other terminal | 3 |
to detect and measure | 3 |
to the passage of | 3 |
done by means of | 3 |
speed of the armature | 3 |
the needle will not | 3 |
whitney hot wire instruments | 3 |
in connection with a | 3 |
are placed in the | 3 |
the flow of the | 3 |
with the galvanometer and | 3 |
as the voltage rises | 3 |
rheostat with no voltage | 3 |
by the volume of | 3 |
effect of the current | 3 |
on each side of | 3 |
right hand side of | 3 |
of short circuits in | 3 |
at full speed with | 3 |
between the two stations | 3 |
short circuit may be | 3 |
of the machines is | 3 |
right hand dial of | 3 |
of the ratio coils | 3 |
method of fault location | 3 |
when the lever of | 3 |
be closed before the | 3 |
by connecting to the | 3 |
to be found in | 3 |
method of testing for | 3 |
in the course of | 3 |
regulating the speed of | 3 |
the least sparking occurs | 3 |
the movement of a | 3 |
by the resistance of | 3 |
a variation of of | 3 |
regulation by shunt field | 3 |
with no resistance in | 3 |
ends of the coils | 3 |
pressure at the terminals | 3 |
motor at full speed | 3 |
of potential method with | 3 |
of the bad wire | 3 |
bar to bar test | 3 |
of the faulty wire | 3 |
current flows from the | 3 |
the point where the | 3 |
terminals of the machine | 3 |
may be used for | 3 |
angles to each other | 3 |
rated capacity of the | 3 |
should be used to | 3 |
is inserted between the | 3 |
voltage of the cell | 3 |
what are the causes | 3 |
if the pressure of | 3 |
of the large magnet | 3 |
being the number of | 3 |
contact with the plate | 3 |
from a to c | 3 |
when the switch is | 3 |
connected in series and | 3 |
this is accomplished by | 3 |
the efficiency of the | 3 |
of the shunt field | 3 |
may be made by | 3 |
detect and measure electricity | 3 |
when the current is | 3 |
the short circuit may | 3 |
the dynamo may be | 3 |
so it may be | 3 |
until the galvanometer shows | 3 |
the new york book | 3 |
circuit with the galvanometer | 3 |
ohm by steps of | 3 |
a quarter of an | 3 |
it is difficult to | 3 |
of thompson watt hour | 3 |
serves as a means | 3 |
parallel to the shaft | 3 |
with the positive terminal | 3 |
if the motor be | 3 |
turns of heavy wire | 3 |
deflection of one division | 3 |
in the potentiometer circuit | 3 |
at the rate of | 3 |
as well as for | 3 |
to measure a current | 3 |
the queen acme set | 3 |
pole of the other | 3 |
a coil of wire | 3 |
sensibility being the number | 3 |
the liquid in the | 3 |
the frame of the | 3 |
tips of the brushes | 3 |
the ratio coils are | 3 |
in opposition to the | 3 |
what is called a | 3 |
be greater than the | 3 |
stationary when the weight | 3 |
the adjustment of the | 3 |
of the commutator to | 3 |
mounted on the shaft | 3 |
magnetic field of a | 3 |
circuits between sections through | 3 |
and a current of | 3 |
total resistance of the | 3 |
new york book company | 3 |
or to the left | 3 |
due to a column | 3 |
of the adjusting screw | 3 |
up with the other | 3 |
to the secondary coil | 3 |
result is that the | 3 |
should be noted that | 3 |
the sensibility being the | 3 |
a current is sent | 3 |
the fall of potential | 3 |
with a piece of | 3 |
in the center of | 3 |
through which the current | 3 |
the restraining force of | 3 |
through frame or core | 3 |
resistance in the shunt | 3 |
compass points north and | 3 |
by the current from | 3 |
to a greater extent | 3 |
is taken of this | 3 |
from the foregoing it | 3 |
the front of the | 3 |
this may be done | 3 |
of the coils in | 3 |
is mounted on a | 3 |
of the base has | 3 |
fault location with leeds | 3 |
one of which is | 3 |
be noted that the | 3 |
applying the hand to | 3 |
up to full speed | 3 |
of contact with the | 3 |
the contact on the | 3 |
close up to the | 3 |
was the first to | 3 |
so that the current | 3 |
by a binding screw | 3 |
contact with each other | 3 |
may be used as | 3 |
that it cannot be | 3 |
which is mounted a | 3 |
of electricity passes through | 3 |
position of the brushes | 3 |
constant or figure of | 3 |
the compass points north | 3 |
will be noted that | 3 |
when this has been | 3 |
from one of the | 3 |
be located by the | 3 |
means of a voltmeter | 3 |
proportional to the sine | 3 |
position shown in fig | 3 |
division of the scale | 3 |
shown by the dotted | 3 |
with the result that | 3 |
value of the shunt | 3 |
current will be generated | 3 |
a combination of the | 3 |
to and from the | 3 |
the weight is placed | 3 |
dot or a dash | 3 |
at which it is | 3 |
to one terminal of | 3 |
of one of the | 3 |
if the current in | 3 |
is the action of | 3 |
deposits silver at the | 3 |
back to the off | 3 |
the path of the | 3 |
total length of the | 3 |
against the direction of | 3 |
post and the negative | 3 |
is a method of | 3 |
there are several ways | 3 |
by the electric current | 3 |
that the fault is | 3 |
wiring up a house | 3 |
to the line post | 3 |
the bus bars is | 3 |
wire carrying a current | 3 |
connected by means of | 3 |
ohm coils for the | 3 |
of the water in | 3 |
armature of the motor | 3 |
that the resistance of | 3 |
direction of the dart | 3 |
as well as in | 3 |
the diagram shows the | 3 |
out of the circuit | 3 |
in series as shown | 3 |
in the same manner | 3 |
this means that the | 3 |
same as in the | 3 |
end of the key | 3 |
brought into contact with | 3 |
method of locating short | 3 |
how to acquire the | 3 |
field of a magnet | 3 |
as to form a | 3 |
and below normal speed | 3 |
of a pair of | 3 |
the double throw switch | 3 |
to stop a motor | 3 |
the reason that the | 3 |
they should then be | 3 |
from the copper to | 3 |
of current generated by | 3 |
the brushes upon the | 3 |
when constructed as a | 3 |
to which is attached | 3 |
of the several dynamos | 3 |
in which the scale | 3 |
will be deflected toward | 3 |
a standard of measurement | 3 |
as quickly as possible | 3 |
faces of the brushes | 3 |
short circuits in armature | 3 |
a resistance due to | 3 |
an instrument for measuring | 3 |
the constant of the | 3 |
difference of potential between | 3 |
commutator as shown in | 3 |
varies with the load | 3 |
end of the condenser | 3 |
one end to the | 3 |
end of the core | 3 |
series dynamos in parallel | 3 |
the faulty wire to | 3 |
the flow of a | 3 |
in place of the | 3 |
is a piece of | 3 |
a magnetic needle is | 3 |
of the voltmeter is | 3 |
as well as to | 3 |
any of the following | 3 |
end of the needle | 3 |
if such be the | 3 |
compound dynamos in series | 3 |
the form of a | 3 |
state of the commutator | 3 |
midway between the ends | 3 |
must be used to | 3 |
was adopted by the | 3 |
it may be readily | 3 |
in such a manner | 3 |
acted upon by the | 3 |
a resistance in series | 3 |
the base is a | 3 |
make a complete circuit | 3 |
field at right angles | 3 |
cable or faulty wire | 3 |
obtained from the formula | 3 |
if the machine do | 3 |
it is to be | 3 |
the coils of a | 3 |
the tension of the | 3 |
short circuits between adjacent | 3 |
flow of the current | 3 |
by the value of | 3 |
when no current is | 3 |
as a means of | 3 |
of the coil is | 3 |
which is in the | 3 |
and the negative terminal | 3 |
method of measuring the | 3 |
so as to cut | 3 |
proportional to the strength | 3 |
or figure of merit | 3 |
resistance due to a | 3 |
movement of a current | 3 |
the position shown in | 3 |
between the two coils | 3 |
machine is as follows | 3 |
move the lever of | 3 |
a direction opposite to | 3 |
deflections of a galvanometer | 3 |
n pole of the | 3 |
no resistance in circuit | 3 |
the armature should be | 3 |
it is evident that | 3 |
of the brushes upon | 3 |
series field winding of | 3 |
when the armature is | 3 |
at its lower end | 3 |
connected to the terminals | 3 |
armature circuit of the | 3 |
either direct or alternating | 3 |
place the double throw | 3 |
in the u tube | 3 |
will produce a deflection | 3 |
in a direction opposite | 3 |
so that when the | 3 |
of the coil and | 3 |
in this case the | 3 |
in the figure the | 3 |
connected up with one | 3 |
the needle of the | 3 |
to run in parallel | 3 |
so as to bring | 3 |
a greater or less | 3 |
the contact faces of | 3 |
the current strength is | 3 |
which it is to | 3 |
the cable or faulty | 3 |
method of locating a | 3 |
should be used in | 3 |
the difference between a | 3 |
so that it will | 3 |
which passes through the | 3 |
the wire of the | 3 |
few turns of heavy | 3 |
to excite the machine | 3 |
it is possible to | 3 |
the inner end of | 3 |
by means of which | 3 |
are simply special forms | 3 |
the term applied to | 3 |
on the top of | 3 |
to be used for | 3 |
of the whole current | 3 |
the instrument is made | 3 |
plug is inserted between | 3 |
when the weight is | 3 |
change in the direction | 3 |
is disconnected from the | 3 |
whole of the armature | 3 |
through the coils of | 3 |
likely to occur in | 3 |
the positive pole of | 3 |
be of the same | 3 |
in series or in | 3 |
the load upon the | 3 |
points a and b | 3 |
from north to south | 3 |
points north and south | 3 |
the machine do not | 3 |
it has been found | 3 |
to the resistance of | 3 |
proportional to the square | 3 |
series or in parallel | 3 |
the direction in which | 3 |
a method of locating | 3 |
it there for about | 3 |
this is known as | 3 |
inch wide and inch | 3 |
when the needle is | 3 |
of turns of wire | 3 |
as the load varies | 3 |
series with the armature | 3 |
which is indicated by | 3 |
resistance is put in | 3 |
the dimensions of the | 3 |
are insulated from each | 3 |
the current flows from | 3 |
the speed of a | 3 |
contact faces of the | 3 |
may be connected to | 3 |
if the voltage of | 3 |
be placed in the | 3 |
fact will be indicated | 3 |
are connected as in | 3 |
be out of contact | 3 |
to the bus bar | 3 |
after which it is | 3 |
of the wire is | 3 |
it is used for | 3 |
has been found that | 3 |
the cell to be | 3 |
it is made of | 3 |
main switch is closed | 3 |
should be taken with | 3 |
it will be noted | 3 |
series dynamos in series | 3 |
to reduce the speed | 3 |
the field coils may | 3 |
forced system of lubrication | 3 |
current generated by a | 3 |
connections were made as | 3 |
simply special forms of | 3 |
see that they are | 3 |
short circuits in the | 3 |
the latter may be | 3 |
moving iron type instrument | 3 |
into the shunt circuit | 3 |
of the armature and | 3 |
current in the wire | 3 |
will be indicated by | 3 |
and in the case | 3 |
give a deflection of | 3 |
on which is mounted | 3 |
it would be difficult | 3 |
to bad adjustment of | 3 |
are provided with a | 3 |
the dynamo should be | 3 |
the handle of the | 3 |
hold it there for | 3 |
the fact will be | 3 |
from the north pole | 3 |
movement of the lever | 3 |
inches in diameter and | 3 |
the speed of rotation | 3 |
shunt dynamos in series | 3 |
at which the motor | 3 |
current in the loop | 3 |
should be taken that | 3 |
by comparison with a | 3 |
location with leeds and | 3 |
the copper to the | 3 |
series with the battery | 3 |
in cross section at | 3 |
divisions of the scale | 3 |
are attached to the | 3 |
terminal of the secondary | 3 |
to determine the current | 3 |
of a tangent galvanometer | 3 |
be proportional to the | 3 |
the pressure of this | 3 |
the coil may be | 3 |
if one of the | 3 |
water in the reservoir | 3 |
of the armature circuit | 3 |
cell to be tested | 3 |
with the axis of | 3 |
be used as a | 3 |
of fault location with | 3 |
with a wire of | 3 |
to one of the | 3 |
the current required to | 3 |
is such as to | 3 |
circuit by means of | 3 |
silver at the rate | 3 |
in circuit with each | 3 |
why the compass points | 3 |
necessary to bring the | 3 |
the motor should be | 3 |
in such a way | 3 |
diagram showing connections of | 3 |
the armature or commutator | 3 |
where there are two | 3 |
instruments are connected as | 3 |
the body of the | 3 |
if the brushes be | 3 |
end of the mandrel | 3 |
the deflections of the | 3 |
across the unknown resistance | 3 |
no current is flowing | 3 |
employed resistance in the | 3 |
flow of a current | 3 |
is of such a | 3 |
the sparking at the | 3 |
and then measuring the | 3 |
in the main circuit | 3 |
the difference between the | 3 |
it is desired to | 3 |
of rotation of the | 3 |
such a manner that | 3 |
positions upon the commutator | 3 |
with all resistance in | 3 |
the field coils and | 3 |
bad condition of brushes | 3 |
to the post ba | 3 |
at an angle to | 3 |
were made as in | 3 |
the arms a and | 3 |
axis of the coil | 3 |
is joined to the | 3 |
is in contact with | 3 |
the foregoing it will | 3 |
what kind of oil | 3 |
by an aluminum disc | 2 |
used to advantage where | 2 |
cloth or piece of | 2 |
swing to the left | 2 |
regulation by combined armature | 2 |
of which the electrodes | 2 |
it is called the | 2 |
box is moved to | 2 |
connected up by a | 2 |
disc of the normal | 2 |
will not be deflected | 2 |
only necessary to multiply | 2 |
in correct line with | 2 |
bearings can be lubricated | 2 |
be thrown over so | 2 |
last pair of blocks | 2 |
of mirrors in galvanometers | 2 |
from which the current | 2 |
seen that when the | 2 |
compound dynamo into and | 2 |
method of correcting reversed | 2 |
what tools and apparatus | 2 |
exterior magnetic influence around | 2 |
the object being to | 2 |
the press has been | 2 |
the correct polarity in | 2 |
two outer terminals are | 2 |
like the needle of | 2 |
through the lower end | 2 |
common air not a | 2 |
regular succession of values | 2 |
rapidity of modern progress | 2 |
if the difference be | 2 |
of unknown resistance and | 2 |
in taking the temperature | 2 |
such a character that | 2 |
made to fit the | 2 |
meter away from the | 2 |
be explained as follows | 2 |
a solution of sulphate | 2 |
the potentiometer reading is | 2 |
what two kinds of | 2 |
interposed in the path | 2 |
moving in a magnetic | 2 |
the oil is forced | 2 |
sent through the coils | 2 |
by weight of the | 2 |
of a few minutes | 2 |
would be the case | 2 |
the bottom of each | 2 |
broken wire and good | 2 |
also passes through a | 2 |
a great deal of | 2 |
ran as a dynamo | 2 |
good contact with the | 2 |
be as low as | 2 |
that they do not | 2 |
the lower right hand | 2 |
insulation of the machine | 2 |
distance of one meter | 2 |
by a set screw | 2 |
wound so as to | 2 |
current from the battery | 2 |
may not be affected | 2 |
of the field and | 2 |
and the two outer | 2 |
to the posts marked | 2 |
so connected up that | 2 |
the cable between the | 2 |
key has a wire | 2 |
acquire the vast knowledge | 2 |
a multiple of the | 2 |
cause the needle to | 2 |
l is the length | 2 |
from the other terminal | 2 |
increases the current in | 2 |
pressure between a and | 2 |
in order to maintain | 2 |
make a copper voltameter | 2 |
distant end of the | 2 |
can be controlled by | 2 |
carrying a current of | 2 |
placed in the scoop | 2 |
may be used with | 2 |
we shall have volts | 2 |
by changes in temperature | 2 |
passing through the magnetic | 2 |
use an outside battery | 2 |
is also provided with | 2 |
construction and principle of | 2 |
ends of the electrodes | 2 |
total scale value of | 2 |
opposite ends of the | 2 |
the pressure of each | 2 |
are frequently provided with | 2 |
a pair of copper | 2 |
a small hole in | 2 |
the positive lead to | 2 |
of the surrounding air | 2 |
the indication that the | 2 |
from a battery or | 2 |
deflection of ten divisions | 2 |
bridging across the insulation | 2 |
a ray of light | 2 |
of the respective machines | 2 |
winding cables with marlin | 2 |
the galvanometer is used | 2 |
binding post for a | 2 |
of the line wires | 2 |
to test a meter | 2 |
in order to get | 2 |
front and back of | 2 |
and the bar a | 2 |
be allowed to rise | 2 |
be substituted for the | 2 |
battery or another dynamo | 2 |
not kept thoroughly clean | 2 |
coils being so connected | 2 |
moved so as to | 2 |
will be the same | 2 |
cloth dipped in vaseline | 2 |
various other electrical manifestations | 2 |
plate in a battery | 2 |
columbia watt hour meter | 2 |
th of for the | 2 |
by the removal of | 2 |
polarities of the magnets | 2 |
the battery and the | 2 |
is ready to be | 2 |
and must be adjusted | 2 |
segment and hold it | 2 |
of the moving element | 2 |
side of the u | 2 |
but when the armature | 2 |
with this arrangement the | 2 |
be used in a | 2 |
the function of the | 2 |
its terminal is designated | 2 |
to the next core | 2 |
equal to the voltage | 2 |
the ordinary starting box | 2 |
will be out of | 2 |
and if this be | 2 |
the machine building up | 2 |
takes up the slack | 2 |
opens with leeds and | 2 |
to excite arises from | 2 |
brush holder of the | 2 |
by twice the angle | 2 |
may be used on | 2 |
the needle is attracted | 2 |
the pivot of the | 2 |
is composed of cables | 2 |
needle swing to the | 2 |
the machine to which | 2 |
in a circuit which | 2 |
the defective wire from | 2 |
the anode shall be | 2 |
insulation resistance of the | 2 |
being that due to | 2 |
tend to turn the | 2 |
faulty wires in a | 2 |
of an inch in | 2 |
which the galvanometer is | 2 |
connected with the positive | 2 |
ends of the shunt | 2 |
pivot of the hook | 2 |
of which is connected | 2 |
shows no deflection when | 2 |
armature of electric bell | 2 |
is a high resistance | 2 |
with the small holes | 2 |
enough to carry the | 2 |
the shunt field leads | 2 |
of the field magnets | 2 |
should be given to | 2 |
so that they may | 2 |
bar test for short | 2 |
the inner side of | 2 |
of magnets in motor | 2 |
will answer the purpose | 2 |
hammer multiple switch starter | 2 |
with amperes flowing to | 2 |
will give the value | 2 |
when there is no | 2 |
are induced in the | 2 |
that german silver has | 2 |
varying the field strength | 2 |
the total resistance is | 2 |
thereby completing the circuit | 2 |
soft cloth dipped in | 2 |
in the above figure | 2 |
with an increase of | 2 |
revolve with the shaft | 2 |
remains stationary when the | 2 |
and a coulomb is | 2 |
a current flows through | 2 |
secured to the base | 2 |
step of resistance is | 2 |
so far as the | 2 |
binding posts for the | 2 |
two classes of voltameter | 2 |
by the fact that | 2 |
these controllers being per | 2 |
of the current flowing | 2 |
is wound to the | 2 |
presence of a current | 2 |
the secondary coil will | 2 |
resistance out of the | 2 |
brushes of all the | 2 |
field coils of all | 2 |
upon by the current | 2 |
in a charged wire | 2 |
shown in the following | 2 |
is applied to the | 2 |
switching a compound dynamo | 2 |
r resistance of the | 2 |
the active material of | 2 |
the father of the | 2 |
smoothing commutator with a | 2 |
the damping effect in | 2 |
for opens with leeds | 2 |
and the other two | 2 |
duncan watt hour meter | 2 |
plating iron with copper | 2 |
a coulomb is the | 2 |
that the coil is | 2 |
known as the weston | 2 |
attached to the moving | 2 |
motors in parallel with | 2 |
to the shaft acting | 2 |
more than their share | 2 |
it books electricity for | 2 |
the instrument indicates the | 2 |
as the apparatus it | 2 |
upon the amount of | 2 |
what is the allowable | 2 |
by the human eye | 2 |
the only remedy is | 2 |
for more than a | 2 |
in the position pq | 2 |
the transmitter and receiver | 2 |
the operation of starting | 2 |
the field strength of | 2 |
end of the switch | 2 |
solution of sulphate of | 2 |
arrange itself north and | 2 |
the faulty coil will | 2 |
main knife switch and | 2 |
speed of a motor | 2 |
of a high tension | 2 |
are two other wires | 2 |
around a vertical axis | 2 |
with the shunt circuit | 2 |
current flowing through a | 2 |
the unconnected terminal of | 2 |
be drawn off by | 2 |
the current will traverse | 2 |
the commutator has been | 2 |
coil or between segments | 2 |
cell to have a | 2 |
the commutator end of | 2 |
it is impossible to | 2 |
a complete glossary of | 2 |
its operation depends upon | 2 |
the next step is | 2 |
at a right angle | 2 |
otherwise the machine will | 2 |
has one of its | 2 |
the known resistance and | 2 |
of current through the | 2 |
type commutator truing device | 2 |
are the field coils | 2 |
right or to the | 2 |
ohms to international ohms | 2 |
resistance to the passage | 2 |
settle to the bottom | 2 |
bar test for open | 2 |
was found that the | 2 |
interior view of thompson | 2 |
turned so that the | 2 |
are made as shown | 2 |
negative lead to the | 2 |
will be deflected to | 2 |
in the circuit by | 2 |
can be made at | 2 |
it should be done | 2 |
the use of hydrogen | 2 |
when the connections are | 2 |
reverse the direction of | 2 |
is of the same | 2 |
these instruments is produced | 2 |
ohm readily estimated to | 2 |
short circuits in commutator | 2 |
a complete circuit is | 2 |
solution of copper sulphate | 2 |
the starting box is | 2 |
current in the circuit | 2 |
is the value of | 2 |
which the wires are | 2 |
term applied to the | 2 |
in order to increase | 2 |
it should first be | 2 |
must be made as | 2 |
in cases where the | 2 |
the case of large | 2 |
one of a pair | 2 |
is now necessary to | 2 |
in close proximity to | 2 |
curious superstitions concerning electricity | 2 |
of the needle from | 2 |
the earth as a | 2 |
the case is provided | 2 |
shown by the dart | 2 |
taken off the hook | 2 |
when the current falls | 2 |
the range of the | 2 |
pressure of this battery | 2 |
to occur in a | 2 |
bottom of the meter | 2 |
and bad wires are | 2 |
soon as the voltage | 2 |
be examined to see | 2 |
a very small current | 2 |
so that the north | 2 |
large enough to carry | 2 |
after a run of | 2 |
d of the armature | 2 |
has a wire connection | 2 |
defined as the resistance | 2 |
in the insulation between | 2 |
below that of the | 2 |
tools and apparatus are | 2 |
with the positive pole | 2 |
the base by a | 2 |
and lang electric vehicles | 2 |
rheostat form of switch | 2 |
adjustment is made by | 2 |
increase by shunt field | 2 |
flows through the wire | 2 |
oxygen as a purifier | 2 |
increased in proportion to | 2 |
is not at all | 2 |
plates are held apart | 2 |
the flow of electricity | 2 |
so arranged that the | 2 |
armature resistance method of | 2 |
speed all the resistance | 2 |
reading of the meter | 2 |
desired to operate the | 2 |
electrical contact with the | 2 |
a single piece of | 2 |
of the bus bars | 2 |
until the value of | 2 |
may be made of | 2 |
in order to suit | 2 |
strength of the armature | 2 |
and where there are | 2 |
of the resistance being | 2 |
it is a difficult | 2 |
a coil carrying the | 2 |
short piece of wire | 2 |
apparatus for measuring low | 2 |
of arranging the connections | 2 |
there being no iron | 2 |
to reverse the direction | 2 |
the number of micro | 2 |
when the tool is | 2 |
starting rheostats of small | 2 |
of correcting reversed polarity | 2 |
coil must be a | 2 |
to be run in | 2 |
needle is suspended by | 2 |
coils in opposite directions | 2 |
direction of the flow | 2 |
the leads from the | 2 |
a chemical change is | 2 |
or less developed fault | 2 |
is made up of | 2 |
may be short circuited | 2 |
special forms of ammeter | 2 |
the level of the | 2 |
to make a sulphuric | 2 |
voltmeter may be used | 2 |
the standard cell sc | 2 |
between sections through frame | 2 |
the varnish or insulation | 2 |
are sent through the | 2 |
may be ascertained by | 2 |
moved to the first | 2 |
switch should be closed | 2 |
a torque which tends | 2 |
the torque or pull | 2 |
the vibration of the | 2 |
dynamo fails to excite | 2 |
connected direct to the | 2 |
field coils may be | 2 |
current is flowing through | 2 |
opposite to that of | 2 |
can be compared with | 2 |
so arranged as to | 2 |
term applied to a | 2 |
well for practical use | 2 |
completely disconnected from those | 2 |
to the correct angle | 2 |
telephone stations in circuit | 2 |
is to cause the | 2 |
both ends of the | 2 |
circuit is directly proportional | 2 |
of assembling core discs | 2 |
it has been stated | 2 |
with the same degree | 2 |
are in contact with | 2 |
ought not to be | 2 |
passes through the coils | 2 |
the term build up | 2 |
if it be necessary | 2 |
the batteries of the | 2 |
of sulphate of copper | 2 |
to one side of | 2 |
to act or the | 2 |
run as a motor | 2 |
the other side of | 2 |
the speed of shunt | 2 |
flows from the north | 2 |
do not make good | 2 |
controllers being per cent | 2 |
the law of the | 2 |
terminals of a battery | 2 |
effect is to cause | 2 |
uses of the electrical | 2 |
and the south pole | 2 |
amount of deflection of | 2 |
proportion to the current | 2 |
the whitney hot wire | 2 |
to clean them with | 2 |
by an excessive heating | 2 |
where there is no | 2 |
short circuiting sections of | 2 |
that all metals are | 2 |
to the bottom and | 2 |
than the resistance of | 2 |
is the length of | 2 |
done in case of | 2 |
connected in series as | 2 |
and is now used | 2 |
by exciting the field | 2 |
pressing on a commutator | 2 |
means of a short | 2 |
view of resistance device | 2 |
should be fixed by | 2 |
so as to obtain | 2 |
of a decade can | 2 |
attached to the needle | 2 |
circuit in coil or | 2 |
one of the small | 2 |
if the trouble be | 2 |
not be possible to | 2 |
kept thoroughly clean and | 2 |
the field coils in | 2 |
the apparatus required consists | 2 |
be made to run | 2 |
of the instrument are | 2 |
will now be seen | 2 |
and in the second | 2 |
the magnetic field is | 2 |
one of the pieces | 2 |
is provided by means | 2 |
among the series coils | 2 |
damping effect in these | 2 |
must be taken to | 2 |
so interoperating as to | 2 |
the motor up to | 2 |
a current passing through | 2 |
put in circuit with | 2 |
in the first instance | 2 |
protection to the wires | 2 |
other wires which may | 2 |
be less than the | 2 |
rauch and lang electric | 2 |
at about the same | 2 |
and the points and | 2 |
is found in the | 2 |
a total scale value | 2 |
the main switch be | 2 |
the rings are placed | 2 |
to the influence of | 2 |
neighboring current in a | 2 |
a current which is | 2 |
as in the ordinary | 2 |
which is wound to | 2 |
to make a complete | 2 |
must be kept clean | 2 |
diagram of connections in | 2 |
key is pressed down | 2 |
which is attached a | 2 |
is driving comes up | 2 |
surrounded by a coil | 2 |
taken from the line | 2 |
upon the end of | 2 |
a brush holder of | 2 |
between any two points | 2 |
of the armature winding | 2 |
a decade can be | 2 |
affected by magnetic fields | 2 |
of starters and regulators | 2 |
a wire or circuit | 2 |
is in the direction | 2 |
dial of which registers | 2 |
which is the measure | 2 |
the switch be closed | 2 |
wound dynamos to run | 2 |
and the negative lead | 2 |
amount of current to | 2 |
regulation of traction motors | 2 |
the coupling of two | 2 |
as may be required | 2 |
broken joint between commutator | 2 |
battery post and the | 2 |
residual magnetism should be | 2 |
may be defined as | 2 |
the successive steps of | 2 |
other cables in which | 2 |
how to detect and | 2 |
a binding post for | 2 |
regulate to approximately constant | 2 |
with a decrease of | 2 |
connections for series and | 2 |
advantage where the length | 2 |
the tendency for the | 2 |
a rush of current | 2 |
together so as to | 2 |
to hold the needle | 2 |
is shown a brush | 2 |
coated with sulphide of | 2 |
on the surface of | 2 |
magnet to the other | 2 |
constructed as a voltmeter | 2 |
brushes making bad contact | 2 |
parts of a dynamo | 2 |
fault may be remedied | 2 |
difficult for the current | 2 |
which the current passes | 2 |
magnetic field which is | 2 |
one end is a | 2 |
are the pressure terminals | 2 |
a hole through the | 2 |
in the other direction | 2 |
the point of normal | 2 |
is turned so that | 2 |
to the base by | 2 |
coils of all the | 2 |
to a certain value | 2 |
the switch is moved | 2 |
from the plane of | 2 |
is likely to occur | 2 |
should be allowed to | 2 |
fall below that of | 2 |
the sine of the | 2 |
voltmeters are simply special | 2 |
to the first contact | 2 |
half inch below the | 2 |
to the difference of | 2 |
turn off the lamps | 2 |
for what kinds of | 2 |
passed through the galvanometer | 2 |
the good and broken | 2 |
composition of the metal | 2 |
the winding consists of | 2 |
at a constant value | 2 |
is brought into contact | 2 |
sections through binding wires | 2 |
so that they do | 2 |
plate in the cup | 2 |
the column of mercury | 2 |
a magnetic needle of | 2 |
to the positive brushes | 2 |
to get the best | 2 |
a current is passing | 2 |
brought up to the | 2 |
and good wire are | 2 |
indication of excessive voltage | 2 |
short circuits or breaks | 2 |
the failure to excite | 2 |
that the armature is | 2 |
the latter with oil | 2 |
an aluminum disc moving | 2 |
we have a large | 2 |
positive terminal of one | 2 |
will flow through it | 2 |
can be increased by | 2 |
side of the battery | 2 |
the pressure will have | 2 |
cutting the lines of | 2 |
the deflection with the | 2 |
not grouped in pairs | 2 |
of the variable resistance | 2 |
be connected across the | 2 |
to whether the armature | 2 |
of eddy currents in | 2 |
bring the needle to | 2 |
a long coil galvanometer | 2 |
brushes of the armature | 2 |
with the field coils | 2 |
by means of it | 2 |
in the two branches | 2 |
of the coils is | 2 |
is at a distance | 2 |
be used for measuring | 2 |
only necessary to connect | 2 |
put into the lathe | 2 |
direct to the positive | 2 |
the right or to | 2 |
produce the correct polarity | 2 |
until a position is | 2 |
each other and the | 2 |
when the speed of | 2 |
in sparking at the | 2 |
resistance of the starting | 2 |
arises from this cause | 2 |
coupling of two or | 2 |
to measure high resistances | 2 |
the coil under test | 2 |
the bulb of the | 2 |
of locating short circuits | 2 |
will cause it to | 2 |
current generated by each | 2 |
the case or cover | 2 |
one conductor to another | 2 |
method of assembling core | 2 |
lines of force parallel | 2 |
being provided with a | 2 |
and in the opposite | 2 |
cable to carbon brush | 2 |
natural sines and tangents | 2 |
of the battery and | 2 |
voltage between the outside | 2 |
a uniform cross section | 2 |
and the load on | 2 |
is arranged so that | 2 |
between p and q | 2 |
tenths switch and the | 2 |
circuit wires in direct | 2 |
because the resistance of | 2 |
terminal into the wire | 2 |
it contacts with the | 2 |
feed the latter with | 2 |
hand dial of which | 2 |
the main switch should | 2 |
speed of the machine | 2 |
how to place the | 2 |
test for break in | 2 |
in a neat and | 2 |
the coil should be | 2 |
as to make it | 2 |
means of a pair | 2 |
of this wire is | 2 |
and assume the position | 2 |
of the metal of | 2 |
so as to make | 2 |
with a cup of | 2 |
the capacity of the | 2 |
cut resistance out of | 2 |
less than that of | 2 |
must be insulated from | 2 |
the sulphuric acid voltameter | 2 |
the coherer switch is | 2 |
the sizes of the | 2 |
and it is therefore | 2 |
shall have volts and | 2 |
when current passes through | 2 |
find a means whereby | 2 |
the lever to the | 2 |
the field and armature | 2 |
to the movement of | 2 |
is almost universally used | 2 |
which is divided into | 2 |
current in a charged | 2 |
faults of this description | 2 |
faults where the loop | 2 |
is no current in | 2 |
calibrated to read volts | 2 |
of the current passing | 2 |
that the brushes bear | 2 |
is six inches long | 2 |
to go from c | 2 |
an appreciable time to | 2 |
the pressure of a | 2 |
is then easily calculated | 2 |
the same hub post | 2 |
from the north to | 2 |
method of soldering cable | 2 |
shunt and compound machines | 2 |
primary to the secondary | 2 |
shaft and cause the | 2 |
on the switch next | 2 |
be taken not to | 2 |
method of coupling series | 2 |
will cause the motor | 2 |
by means of screws | 2 |
so wound as to | 2 |
provided for the purpose | 2 |
the voltage regulated by | 2 |
the morse telegraph code | 2 |
heat in a wire | 2 |
care must be taken | 2 |
than a few seconds | 2 |
top view of armature | 2 |
the speed at which | 2 |
the negative lead to | 2 |
slots in which the | 2 |
the study of electricity | 2 |
inches wide and inch | 2 |
range of the instrument | 2 |
the commutator with a | 2 |
the form of gas | 2 |
direction of the deflection | 2 |
which are placed in | 2 |
cable between the fault | 2 |
the side of the | 2 |
in testing for opens | 2 |
a moderate amount of | 2 |
as the starting lever | 2 |
proper share of the | 2 |
and the other terminal | 2 |
connecting up the plates | 2 |
x and y are | 2 |
the galvanometer needle will | 2 |
the quantity of water | 2 |
when the disc is | 2 |
position of the coil | 2 |
may be calibrated to | 2 |
of the whitney hot | 2 |
more shunt dynamos to | 2 |
of the current generated | 2 |
the circuit is directly | 2 |
two main conductors or | 2 |
indicating direction of current | 2 |
regulator with no voltage | 2 |
may be increased to | 2 |
how to test a | 2 |
with one end of | 2 |
of the field magnet | 2 |
turns embraced by twice | 2 |
connected to the block | 2 |
speed regulator with no | 2 |
more or less developed | 2 |
the binding posts for | 2 |
the square root of | 2 |
upon the commutator with | 2 |
through one or more | 2 |
resistance of one ohm | 2 |
the next dial kilowatt | 2 |
extent than the perfect | 2 |
of coupling compound dynamos | 2 |
the other terminals of | 2 |
in pressing on a | 2 |
the arms of the | 2 |
with a layer of | 2 |
the rheostat coils are | 2 |
connections are shown in | 2 |
field with amperes flowing | 2 |
requires a very small | 2 |
of smoothing commutator with | 2 |
are the causes of | 2 |
when a dynamo is | 2 |
to make a telephone | 2 |
disappear as soon as | 2 |
circuits or breaks in | 2 |
the normal speed in | 2 |
a closed circuit is | 2 |
of pressure between the | 2 |
is connected is not | 2 |
to advantage where the | 2 |
to keep the commutator | 2 |
by maintaining a difference | 2 |
coils of the moving | 2 |
sufficiently well for practical | 2 |
of a conductor to | 2 |
load upon the machine | 2 |
may be used in | 2 |
see that it is | 2 |
mounted on the same | 2 |
two terminals of the | 2 |
in direct current dynamo | 2 |
loose or knocked in | 2 |
and at the same | 2 |
comes up to speed | 2 |
are in the position | 2 |
when this is the | 2 |
produced by an aluminum | 2 |
from those at work | 2 |
with the load and | 2 |
it be necessary to | 2 |
used to complete the | 2 |
through the instrument and | 2 |
at the negative pole | 2 |
the currents in the | 2 |
the broken wire to | 2 |
the meter and is | 2 |
nil or zero method | 2 |
device consists of a | 2 |
will not be affected | 2 |
coated with copper to | 2 |
when the circuit is | 2 |
to the shaft and | 2 |
how to start a | 2 |
to an accuracy of | 2 |
secondary standards are made | 2 |
has the sine galvanometer | 2 |
should not exceed volts | 2 |
how are the field | 2 |
of the two machines | 2 |
coating one metal with | 2 |
to the brushes and | 2 |
is made use of | 2 |
distance to the fault | 2 |
the total employed resistance | 2 |
sections through frame or | 2 |
the known resistance as | 2 |
be passed through a | 2 |
current which has passed | 2 |
and the latter is | 2 |
are completely disconnected from | 2 |
there must be a | 2 |
the latter should be | 2 |
show no deflection when | 2 |
between the fault and | 2 |
which short circuits the | 2 |
of some of the | 2 |
away from the wall | 2 |
are the resistances of | 2 |
when these parts are | 2 |
of a body or | 2 |
the two terminals of | 2 |
wound upon metal spools | 2 |
the fault is due | 2 |
is to use the | 2 |
rated voltage and below | 2 |
between the poles of | 2 |
in such cases the | 2 |
likely to break down | 2 |
of a bar of | 2 |
so that part of | 2 |
the two kinds of | 2 |
in a practical way | 2 |
circuiting for electric bell | 2 |
the commutator will become | 2 |
the pointer for a | 2 |
instrument is shown in | 2 |
be heated to a | 2 |
the needle is deflected | 2 |
a short section of | 2 |
as to cut resistance | 2 |
of the varnish or | 2 |
of the coil under | 2 |
that quality of a | 2 |
where the length of | 2 |
the resistance of one | 2 |
the iron surface has | 2 |
the north to the | 2 |
in the following figures | 2 |
the upper ends of | 2 |
coils of wheatstone bridge | 2 |
terminal of the bell | 2 |
of tinned iron wire | 2 |
up so that it | 2 |
is taken off the | 2 |
under the recording pen | 2 |
galvanometer is shown in | 2 |
a difference in the | 2 |
for making hydrogen and | 2 |
is connected as in | 2 |
the fall of pressure | 2 |
disconnecting it from the | 2 |
the brushes be not | 2 |
for a deflection of | 2 |
the size of the | 2 |
defective wire from the | 2 |
sparking at the switch | 2 |
is a very simple | 2 |
should the brushes be | 2 |
in the arms a | 2 |
breaks in the armature | 2 |
of the various types | 2 |
the brushes to their | 2 |
end of the adjusting | 2 |
is the objection to | 2 |
out of line with | 2 |
over the slots in | 2 |
to cut out a | 2 |
the generation of the | 2 |
out faulty wires in | 2 |
break down the insulation | 2 |
and thus prevent the | 2 |
the voltage is determined | 2 |
is desired to operate | 2 |
galvanometer constant or figure | 2 |
contacts with the positive | 2 |
a high tension machine | 2 |
definite proportion of the | 2 |
is used in place | 2 |
the same direction as | 2 |
the only difference being | 2 |
which the sparking disappears | 2 |
wires in direct current | 2 |
the restraining force due | 2 |
it is not at | 2 |
of the extended wire | 2 |
pair of copper plates | 2 |
with a soft cloth | 2 |
located directly over the | 2 |
is connected to each | 2 |
to read a meter | 2 |
field and the armature | 2 |
the construction of a | 2 |
handle of the starting | 2 |
but the moment the | 2 |
needle of a differential | 2 |
case is provided with | 2 |
the reading is then | 2 |
amount of current generated | 2 |
magnet is a piece | 2 |
varying the resistance in | 2 |
current required to operate | 2 |
be necessary to clean | 2 |
position of the lever | 2 |
is defined as the | 2 |
unconnected terminal of the | 2 |
ohmmeter or wheatstone bridge | 2 |
of coupling shunt dynamos | 2 |
and ohms pq and | 2 |
turn against the restraining | 2 |
pressure of one volt | 2 |
the output of the | 2 |
voltage and amperage in | 2 |
to complete the circuit | 2 |
illustrating the dot and | 2 |
of the pole pieces | 2 |
if a high resistance | 2 |
tinned iron wire wound | 2 |
the primary to the | 2 |
low resistance so that | 2 |
that the north pole | 2 |
connected to a terminal | 2 |
there is no reverse | 2 |
of the cell or | 2 |
from the position of | 2 |
quantity of current used | 2 |
with greater or less | 2 |
armature is of the | 2 |
shaft produce a torque | 2 |
prepayment watt hour meter | 2 |
resistance of the shunt | 2 |
if the coils be | 2 |
connected to each of | 2 |
torque which tends to | 2 |
a shunt or compound | 2 |
the rheostat resistance is | 2 |
up by a wire | 2 |
a distance of one | 2 |
a position is found | 2 |
body of the wire | 2 |
it may be used | 2 |
should be examined to | 2 |
wire of uniform diameter | 2 |
be not kept thoroughly | 2 |
the needle be deflected | 2 |
rotation of the armature | 2 |
section of telephone receiver | 2 |
to the measurement of | 2 |
the other set of | 2 |
through the resistance box | 2 |
can be obtained with | 2 |
of soldering cable to | 2 |
it is then called | 2 |
method of binding armature | 2 |
terminals of their respective | 2 |
the method of arranging | 2 |
of the armature resistance | 2 |
how the voltage is | 2 |
in a direction to | 2 |
resistance be connected in | 2 |
the armature is dependent | 2 |
the distribution of the | 2 |
in the arm b | 2 |
the shunt circuit by | 2 |
two or more shunt | 2 |
by bad adjustment of | 2 |
correcting reversed polarity in | 2 |
may be done by | 2 |
either in series or | 2 |
which there is a | 2 |
restraining force of a | 2 |
may be made as | 2 |
piece of soft iron | 2 |
it is well to | 2 |
greater or less degree | 2 |
and the current will | 2 |
between each pair of | 2 |
on the end of | 2 |
dynamo field and pole | 2 |
that at the time | 2 |
be suspected that the | 2 |
center of the scale | 2 |
so arranged that it | 2 |
passing through the instrument | 2 |
the poles of a | 2 |
resistance to be measured | 2 |
the presence of an | 2 |
which they are connected | 2 |
after which proceed as | 2 |
interoperating as to cut | 2 |
held by a binding | 2 |
which the current is | 2 |
it is mounted in | 2 |
wire and good wire | 2 |
commutator with a stone | 2 |
it should not be | 2 |
one of the wires | 2 |
it should be remembered | 2 |
of the field with | 2 |
the needle to zero | 2 |
junction of the two | 2 |
and the other set | 2 |
let a represent the | 2 |
with the brush holders | 2 |
the ten ohm coils | 2 |
off the scale in | 2 |
dust lodging in the | 2 |
to adjust the brushes | 2 |
amount of speed reduction | 2 |
high resistance be connected | 2 |
in which the rings | 2 |
bars of the commutator | 2 |
us assume that the | 2 |
the machine will excite | 2 |
a heating of the | 2 |
to correspond with the | 2 |
shown a brush holder | 2 |
the brushes may not | 2 |
offer a resistance to | 2 |
the key is pressed | 2 |
if the current required | 2 |
the case if the | 2 |
resistance of the external | 2 |
the combined action of | 2 |
be made to flow | 2 |
that the bearings can | 2 |
load on the motor | 2 |
be multiplied by the | 2 |
the armature revolves freely | 2 |
through the holes in | 2 |
the battery b is | 2 |
are shown in the | 2 |
a simple electric heater | 2 |
is mounted a pair | 2 |
that when a current | 2 |
a difficult matter to | 2 |
a few minutes at | 2 |
contact on the extended | 2 |
that there is a | 2 |
should be of the | 2 |
good wire are not | 2 |
the battery through wire | 2 |
or if there be | 2 |
the meter away from | 2 |
it is connected is | 2 |
easily calculated from the | 2 |
how the circuits are | 2 |
lines of force at | 2 |
of the properties of | 2 |
at both ends of | 2 |
of the coils be | 2 |
but if there be | 2 |
a greater extent than | 2 |
regulated by means of | 2 |
of the external circuit | 2 |
for practical use by | 2 |
the voltmeter connected to | 2 |
the opposite direction to | 2 |
must be very high | 2 |
a definite part of | 2 |
a cup of acid | 2 |
little or no sparking | 2 |
or out of circuit | 2 |
causes the current to | 2 |
to this last mentioned | 2 |
used to connect the | 2 |
the key and sounder | 2 |
the position of instability | 2 |
but in the case | 2 |
the unit of current | 2 |
to the movable coil | 2 |
connections for two shunt | 2 |
open the main knife | 2 |
the brushes be raised | 2 |
quantity of water will | 2 |
a solution of copper | 2 |
the disc of the | 2 |
be multiplied by any | 2 |
coil is connected to | 2 |
is produced by a | 2 |
from which it was | 2 |
be used on either | 2 |
made up of two | 2 |
them out of their | 2 |
is cut out of | 2 |
required to force the | 2 |
effect of hot bearings | 2 |
is represented sufficiently well | 2 |
screwed to the base | 2 |
is held against the | 2 |
flowing to the load | 2 |
the shaft produce a | 2 |
and in the other | 2 |
current strength in amperes | 2 |
baked appearance of the | 2 |
circuits in armature circuit | 2 |
current flowing through the | 2 |
is made in the | 2 |
connecting up storage battery | 2 |
the battery key and | 2 |
form a closed circuit | 2 |
the bridge is balanced | 2 |
speed regulation of traction | 2 |
coils of a decade | 2 |
when shutting down a | 2 |
go from c to | 2 |
by one ampere in | 2 |
that the end of | 2 |
battery is connected to | 2 |
are set in correct | 2 |
accurate measurement of voltage | 2 |
to avoid touching the | 2 |
in place of a | 2 |
of the armature chamber | 2 |
and it would be | 2 |
to the cable sheath | 2 |
putting on the next | 2 |
the load on the | 2 |
have a high voltage | 2 |
of such dynamos as | 2 |
of the motor in | 2 |
an indication that the | 2 |
of the motor as | 2 |
wiring system for a | 2 |
the needle to turn | 2 |
to be observed in | 2 |
the rings fail to | 2 |
in the second method | 2 |
surface of the armature | 2 |
the coil and the | 2 |
adjacent bars of a | 2 |
the angle of deflection | 2 |
to flow from the | 2 |
the hook in station | 2 |
faulty coil cannot be | 2 |
may be reduced to | 2 |
galvanometer is connected to | 2 |
circuit so that the | 2 |
the needle to travel | 2 |
speed regulation of series | 2 |
to bear in mind | 2 |
raised from contact with | 2 |
is suitable for measuring | 2 |
the rate of current | 2 |
shunts of different capacities | 2 |
of the tenths switch | 2 |
the second method the | 2 |
in the former case | 2 |
electricity is passed through | 2 |
oil and reset the | 2 |
any particles of metal | 2 |
of alternating dynamo armature | 2 |
same degree of accuracy | 2 |
two pieces of magnetic | 2 |
the brushes are in | 2 |
terminals of each of | 2 |
you will remember that | 2 |
of electricity is passed | 2 |
copper to the iron | 2 |
to leap across the | 2 |
use of mirrors in | 2 |
end of the pin | 2 |
it is liable to | 2 |
that of the others | 2 |
segments of the commutator | 2 |
fault is at a | 2 |
m and n will | 2 |
with a value of | 2 |
generating electricity is by | 2 |
on the magnetic vane | 2 |
when the main switch | 2 |
air not a good | 2 |
fresh supply poured in | 2 |
of for the coils | 2 |
needle will not be | 2 |
connection of alternating dynamo | 2 |
act or the reservoir | 2 |
the circuit at the | 2 |
what does the sensibility | 2 |
is obtained from the | 2 |
and compound dynamos in | 2 |
the coils in opposite | 2 |
and the necessity of | 2 |
current of electricity flows | 2 |
the distant end of | 2 |
in this method the | 2 |
a very high resistance | 2 |
passing through the circuit | 2 |
the relation between the | 2 |
of the meter and | 2 |
at the top of | 2 |
a soft cloth dipped | 2 |
diaphragm in a magnetic | 2 |
of coils of the | 2 |
appearance of the varnish | 2 |
as the machine is | 2 |
it be suspected that | 2 |
place the battery connection | 2 |
testing and testing apparatus | 2 |
and operation of the | 2 |
post for a wire | 2 |
a current of that | 2 |
cables in which the | 2 |
consists of a small | 2 |
there is no current | 2 |
they are designed to | 2 |
circuiting sections of the | 2 |
along the axis of | 2 |
the scale in volts | 2 |
of a galvanometer needle | 2 |
circuit when the machine | 2 |
come into contact with | 2 |
the machine has built | 2 |
of a column of | 2 |
a decrease of load | 2 |
of winding cables with | 2 |
change the direction of | 2 |
by which he may | 2 |
motive force divided by | 2 |
what north and south | 2 |
found at which the | 2 |
a pair of parallel | 2 |
running to the other | 2 |
may be detected by | 2 |
the causes of excessive | 2 |
as a means for | 2 |