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Obtain the resonant frequency and Q – fa...

Obtain the resonant frequency and Q – factor of a series LCR circuit with L = 3H, C = `27muF, " " R = 7.4Omega`. 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.

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`omega_(0)=111 "rad s"^(-1), Q=45`
To double Q without changing `omega_(0)`, reduce R to 3.7 `Omega`.
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