Q7.21 Obtain the resonant frequency and -factor of a series circuit with , , and . 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.
The inductance of the inductor
The capacitance of the capacitor
The resistance of the resistor
Q-Factor of the circuit
Now, to improve the sharpness of resonance by reducing its full width at half maximum, by a factor of 2 without changing,
we have to change the resistance of the resistor to half of its value, that is