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RL Circuits

RL Circuits
A 1.5 kΩ resistor and a coil with a 2.2 kΩ inductive reactance are in series across an 18 V ac source. The power factor is

0.564
6.76
55.7
564

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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

20 V
2 V
18.4 V
26.0 V

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RL Circuits
When the frequency of the voltage applied to a series RL circuit is decreased, the impedance

does not change
increases
cannot be determined without values
decreases

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RL Circuits
A 1.2 kΩ resistor is in series with a 15 mH coil across a 10 kHz ac source. The magnitude of the total impedance is

942Ω
1526Ω
152.6Ω
1200Ω

ANSWER DOWNLOAD EXAMIANS APP

RL Circuits
Referring to Problem 23, the reactive power is

10 mVAR
100 mVAR
148 mVAR
6.76 mVAR

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RL Circuits
A 12 kΩ resistor is in series with a 90 mH coil across an 8 kHz ac source. Current flow in the circuit, expressed in polar form, is I = 0.3 angle 0° mA. The source voltage, expressed in polar form, is

0.3 angle 20.6° V
3.84 angle 20.6° V
13.84 angle 69.4° V
12.8 angle 20.6° V

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