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RLC Circuits and Resonance - Technical MCQs

Q1:

What is the resonance frequency?

A 31.8 Hz

B 71 Hz

C 7.1 kHz

D 31.8 kHz

ANS:B - 71 Hz

Resonance frequency = 1/((2*3.14)*sq root(L*C)).
= 1/((2*3.14)*sq root(5*10^(-6))).
= 71hz.