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Obtain the resonant frequency and Q-fact...

Obtain the resonant frequency and Q-factor of a series LCR circuit ith 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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