Draw the sharpness resonance curve of series LCR circuit to explain the Q-factor.

Explain series resonance in LCR circuit.

In series LCR circuit, at resonance impedance

The sharpness of resonance or Q value of resonant circuit with resonant frequency f_r and half power frequency f_1 and f_2 is

What is half power frequency in series LCR circuit.

Draw series resonance curve and discuss its importance.

Write the equation for impedance of series LCR circuit. Hence discuss the condition for resonance.

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 of frequency . Source has emf 230 V and L = 5.0 H , C = 80 mu F and R = 40 Omega .

Obtain the resonant frequency and Q-factor of a series LCR circuit with L = 3.0 H, C = 27 mu F , 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.

Resonance curve of a resonant circuit is graphical representation between

The power factor of LCR circuit at resonance is