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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

564
6.76
55.7
0.564

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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
does not change
increases
decreases

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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
increases
cannot be determined

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RL Circuits
If the frequency is halved and the resistance is doubled, the impedance of a series RL circuit

halves
cannot be determined without values
remains constant
doubles

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RL Circuits
Referring to Problem 23, the reactive power is

148 mVAR
100 mVAR
10 mVAR
6.76 mVAR

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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
200Ω
90Ω
55.15Ω

ANSWER DOWNLOAD EXAMIANS APP
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