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An AC voltage source of variable angular...

An AC voltage source of variable angular frequency `omega` and fixed amplitude V connected in series with a capacitance C and an electric bulb of resistance R (inductance zero). When `omega` is increased

A

the bulb glows dimmer.

B

the bulb glows brighter.

C

total impedance of the circuit is unchanged.

D

total impedance of the circuit increases.

Text Solution

Verified by Experts

The correct Answer is:
B
Since `X _(C) = (1)/(WC)` when w is increased WC Xc decreases, therefore the voltage drop across bulb increases which makes it glow brighter.
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