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MHT CET 2024 (16 May, Shift 2) · RL and RC Series Circuits

RL and RC Series Circuits question from MHT CET 2024 (16 May, Shift 2)

Q32MHT CET 2024 · 16 MAY · SHIFT 2Medium

RL and RC Series Circuits

A light bulb connected in series with a capacitor and an a.c. source is glowing with a certain brightness. On reducing the capacitance of the capacitor and the frequency of the source, the brightness of the lamp (respectively)

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Answer: (b)

$X_C = \frac{1}{2\pi f C}$ increases when $C$ is reduced and also when $f$ is reduced.
In both cases impedance rises and current falls, so brightness is reduced.
So the answer is (b) is reduced, is reduced.

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