Multiple Choice Identify the
choice that best completes the statement or answers the question.
|
|
1.
|
The current-limiting property of the inductor is called ____.
a. | reactance | c. | resistance | b. | voltage | d. | capacitance |
|
|
2.
|
Reactance is symbolized by the letter ____.
|
|
3.
|
Inductive reactance can be computed when the values of inductance and frequency
are known and is measured in ____.
a. | watts | c. | vectors | b. | ohms | d. | amperage |
|
|
4.
|
If two inductors, with values of 2 H and 3 H, are connected in parallel, the
total inductance would equal ____ H.
|
|
5.
|
In a pure inductive circuit, the current lags the voltage by ____
degrees.
|
|
6.
|
Although essentially no true power is being used, an electrical instrument
called VARs is used to measure the ____ in a pure inductive circuit.
a. | capacitance | c. | amperage | b. | resistance | d. | reactive power |
|
|
7.
|
the symbol for impedance is the letter ____.
|
|
8.
|
In AC circuit an inductor with L= ! H and F= 60 Hz calculate Xl in ohms
|
Completion Complete each
statement.
|
|
9.
|
____________________ is one of the primary types of loads in alternating current
circuits because of the continually changing magnetic fields.
|
|
10.
|
If an inductor with an induced voltage of 106 V is connected to a 120-volt AC
line, there will be ____________________ volts to push current through the wire resistance of the
coil.
|
|
11.
|
When inductors are connected in ____________________, the total inductance of
the circuit equals the sum of the inductances of all the inductors.
|
|
12.
|
The total inductive reactance of inductors connected in ____________________
equals the sum of the inductive reactances for all the inductors.
|
|
13.
|
In a parallel circuit, the reciprocal of the total ____________________ is equal
to the sum of the reciprocals of all the inductors.
|
|
14.
|
If three inductors, all with a value of 3 H, are connected in parallel, the
total inductance of the circuit would be ____________________ H.
|
|
15.
|
VARs is an abbreviation for ______________________________.
|