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Physics-AC Voltage

NEET Physics AC Voltage MCQ Question

Type: MCQ-numerical-Easy-Class 12

In a series LCR circuit with L = 0.12 H, C = 480 nF, R = 23 Ω, connected to a 230 V variable frequency supply, what is the resonant frequency of the circuit?

A

23.0 Hz

B

65.3 Hz

C

104.4 Hz

D

214.5 Hz

Correct Answer

Option C

Detailed Explanation

The resonant frequency f0f_0 is given by f0=12πLCf_0 = \frac{1}{2\pi\sqrt{LC}}. Substituting L = 0.12 H and C = 480 nF, the resonant frequency is approximately 104.4 Hz.

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