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A lamp is connected is series with ...

A lamp is connected is series with a a capacitor and an AC source, what happens if the capacity of the capacitor is reduced ?

A

The lamp shines more brightly

B

The lamp shines less brightly

C

There is no change in the brightness of the lamp

D

Birghtness may increase or decrease depending on the frequency of the AC

Text Solution

Verified by Experts

The correct Answer is:
B

The lamp shines less brightly because, then capacity of the capaictor is reduced, the capacitive reactance ` ( X_C = ( 1 )/ ( omega C ) ` increases and hence , the current through the lamp decreases.
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