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MHT CET 2025 (25 Apr, Shift 2) · RL and RC Series Circuits

RL and RC Series Circuits question from MHT CET 2025 (25 Apr, Shift 2)

Q13MHT CET 2025 · 25 APR · SHIFT 2Easy

RL and RC Series Circuits

An a.c. source of frequency ' f ' is connected to a circuit containing an inductance ' $L$ ' and resistance ' R ' in series. The impedance of this circuit is

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Answer: (d)

Series RL impedance: $Z = \sqrt{R^2 + X_L^2}$ with $X_L = 2\pi f L$ .
$Z = \sqrt{R^2 + 4\pi^2 f^2 L^2}$
So the answer is (d).

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