Q. 63.9( 15 Votes )

Obtain the resonant frequency ωr of a series LCR circuit with L = 2.0H, C = 32 μF and R = 10Ω. What is the Q-value of this circuit?

Answer :

Given: L = 2.0H

C = 32mF = 32 × 10-6 F

R = 10 Ω

The diagram of the question is:

Resonant frequency ωr is calculated as follows:

ωr = 125 s-1

Q- value of the LCR circuit can be calculated as follows:

On calculating, we get

Q = 25

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