Lcr Circuit

From standard equation, we have
..(i)
Given, ...(ii)
Comparing Eqs. (i) and (ii), we get

Step 1: Understand resonance in RLC circuits.
In a series RLC circuit, resonance occurs when the inductive reactance and capacitive reactance are equal in magnitude but opposite in phase, resulting in a minimum impedance.

Step 2: Behavior above resonant frequency.
Above the resonant frequency, the circuit becomes capacitive, meaning the current in the capacitor leads the voltage.