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In a series ac circuit a voltage of 20 V at 25 Hz causes a current of 0.20 A, while the same voltage at 75 Hz causes a current of 0.12 A. The circuit consists of

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Question: In a series ac circuit a voltage of 20 V at 25 Hz causes a current of 0.20 A, while the same voltage at 75 Hz causes a current of 0.12 A. The circuit consists of
[A].

R and C in parallel

[B].

R and C in series

[C].

R and L in series

[D].

either (a) or (b)

Answer: Option B

Explanation:

As f increases impedance increases and current decreases in RL circuit.