Electrical resonance in an LCR A.C circuit is very sharp if:

Explanation

The sharpness of resonance can be understood better by understanding resonance. Resonance is defined as the tendency of a system to vibrate with an increase in amplitude at the excitation of frequencies. Resonance frequency or resonant frequency is the maximum frequency at which the amplitude is relatively maximum. The Q factor is used to define the sharpness of the resonance.The sharpness of resonance is defined using the Q factor which explains how fast energy decay in an oscillating system. The sharpness of resonance depends upon:Damping: Effect due to which there is a reduction in amplitude of vibrations.Amplitude: Maximum displacement of a point on a vibrating body which is measured from its equilibrium position.The sharpness of resonance increases or decreases with an increase or decrease in damping and as the amplitude increases, the sharpness of resonance decreases.