what is sharpness of resonance and graph between current and frequency for two different series lcr circuits

- The sharpness of resonance is defined by the Q factor.
- Q factor is a dimensionless parameter that indicates the energy losses within a resonant element which could be anything from a mechanical pendulum, an element in a mechanical structure, or within electronic circuit such as a resonant circuit.
- In particular Q is often used in association with an inductor.
- The sharpness of resonance is related to how quickly the energy of the oscillating system decays.
- The below is the graph between current and frequency for series lcr circuits, with sinusoidal steady-state analysis that is regulated at R = 1 Ω, C = 1 F, L = 1 H, and V = 1 V.