Obtain the resonant frequency or of `omega_r` series LCR circuit with L = 2.OH, `C = 32 muF` and `R= 10 Omega` . What is the Q-value of this circuit?

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.

Define resonant frequency of LCR series circuit.

A 200 V varialbe frequency a.c. source is connected to a series combination the L= 5H , C = 80 mu F and R = 40 Omega . Calculate the angular frequency of the soucre to get maximum current in the cicuit, the current amplitude at resonance and power dissipated in the circuit.

LCR circuit connected to a variable frequency 230 V source . L=5.0 H, C=80 micro F and R=40 ohm. Keeping the source frequency equal to the resonating frequency of the series LCR circuit, if the three elements, L, C and R are arranged in parallel, show that the total current in the parallel LCR circuit is minimum at this frequency. Obtain the current rms value in each branch of the circuit for the elements and source.