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RL Circuits

RL Circuits
Which of the following power factors results in less energy loss in an RL circuit?

0.8
1
0.2
0.4

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RL Circuits
In a parallel RL circuit, there are 3 A rms in the resistive branch and 3 A rms in the inductive branch. The total rms current is

6 A
424 mA
4.24 A
42.4 A

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RL Circuits
When the resistor voltage in a series RL circuit becomes less than the inductor voltage, the phase angle

decreases
is not affected
cannot be determined
increases

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RL Circuits
A 3.3 kΩ resistor and a 120 mH coil are in parallel. Both components are across a 2 kHz, 12 V ac source. The total current in the circuit is

874 A
8.74 mA
874 mA
8.74 A

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RL Circuits
In a series RL circuit, 12 V rms is measured across the resistor, and 14 V rms is measured across the inductor. The peak value of the source voltage is

2 V
18.4 V
26.0 V
20 V

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RL Circuits
Referring to Problem 23, the reactive power is

148 mVAR
100 mVAR
6.76 mVAR
10 mVAR

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