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Obtain the resonant frequency and Q-fact...

Obtain the resonant frequency and Q-factor of a series LCR circuit with `L = 3.0 H, C = 27 muF, and R = 7.4 Omega`. It is desired to improve the sharpness of the resonance of the 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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NCERT GUJARATI-ALTERNATING CURRENT-ADDITIONAL EXERCISES
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