Obtain the resonant frequency and Q- factor of a series circuit with $L= 3.0 \;H,C= 27\mu F$ and $R= 7.4 \Omega$ . It is desired to improve the sharpness of resonance of the circuit by reducing its full width at half max. by a factor of 2. suggest a suitable way

Question

$\begin{array}{1 1} w_r= 111.1\;rads;\;Q=45.04 \\ w_r= 11.11\;rads;\;Q=45.04 \\ w_r= 111.1\;rads;\;Q=450.4 \\ w_r= 1111\;rads;\;Q=45.04 \end{array} $