Home Physics Alternating Current Mix A bulb and a capacitor are in series with an…
Physics Alternating Current Mix MCQ (Single Correct)

A bulb and a capacitor are in series with an ac source. On increasing frequency how will glow of the bulb change

A
The glow decreases
B
The glow increases
C
The glow remain the same
D
The bulb quenches

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The correct answer is:
B

When frequency is increased, the capacitive reactance, , decreases and hence the current through the bulb increases. This will increase the brightness of the bulb.

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