Question

Obtain the resonant frequency and Q – factor of a series LCR circuit with L = 3H, C = 27μF, R = 7.4Ω. It is desired to improve the sharpness of resonance of circuit by reducing its full width at half maximum by a factor of 2. Suggest a suitable way. ​

Answer 1

Answer:

w = 1/√LC

w = 1/9 ×10^-3

f = w/2π

Q = w/Bw

Q = 1/R√L/C

Q = 45

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