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RL CIRCUITS QUIZ

When the frequency is decreased, the impedance of a parallel RL circuit

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

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If a load is purely inductive and the reactive power is 12 VAR, the apparent power is

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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

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

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Referring to Problem 23, the reactive power is

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A 470Ω resistor and a 200 mH coil are in parallel. Both components are across a 1.5 kHz ac source. The total admittance of the circuit, in polar form, is

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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

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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

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

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