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In the circuit shown in figure , the sup...

In the circuit shown in figure , the supply has a constant rms value V but variable frequency f. The frequency at which the voltage drop across R is maximum is

A

100 Hz

B

500 Hz

C

300 Hz

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
(b) Voltage drop across R is maximum at resonance, i.e., at
`omega = 1/sqrt (LC) or f = omega/(2pi) = 1/(2pi sqrt (LC))`
`= 1/(2pi sqrt ((1/pi)(1/pixx10^(-6))) = 500 Hz`
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