Rlc Circuit Resonance. The resonance of a series rlc circuit occurs when the inductive and capacitive reactances are equal in magnitude but cancel each other because they are 180 degrees apart in phase. The physics describes not only physical rlc circuits but also approximates mechanical resonance mass spring pendulum molecularresonance microwave.
Resonance occurs in a series circuit when the supply frequency causes the voltages across l and c to be equal and opposite in phase. Resonance in an rlc circuit is a special condition for parallel and series rlc circuits when capacitive reactance and inductive reactance have the same magnitude and cancel each other. In this circuit containing inductor and capacitor the energy is stored in two different ways.
Thus far we have analysed the behaviour of a series rlc circuit whose source voltage is a fixed frequency steady state sinusoidal supply.
When a capacitor is charged energy gets stored in static electric field. This only happens at some frequency named resonance frequency fo. The physics describes not only physical rlc circuits but also approximates mechanical resonance mass spring pendulum molecularresonance microwave. Resonance in ac circuits is analogous to mechanical resonance where resonance is defined to be a forced oscillation in this case forced by the voltage source at the natural frequency of the system.
