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RL Circuits

RL Circuits
Referring to Problem 23, the reactive power is

148 mVAR
10 mVAR
6.76 mVAR
100 mVAR

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

is not affected
cannot be determined
decreases
increases

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RL Circuits
When the frequency of the voltage applied to a series RL circuit is increased, the phase angle

cannot be determined without values
decreases
does not change
increases

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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

4.24 A
424 mA
6 A
42.4 A

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

1
0.2
0.4
0.8

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RL Circuits
A 140Ω resistor is in parallel with an inductor having 60 inductive reactance. Both components are across a 12 V ac source. The magnitude of the total impedance is

5.51Ω
55.15Ω
90Ω
200Ω

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