Parallel Resonance Circuit. The above resonance condition is same as that of series rlc circuit. A condition of resonance will be experienced in a tank circuit when the reactance of the capacitor and inductor are equal to each other.
A condition of resonance will be experienced in a tank circuit when the reactance of the capacitor and inductor are equal to each other. So the resonant frequency fr will be same in both series rlc circuit and parallel rlc circuit. In a series lc circuit it means zero impedance at resonance.
Parallel resonance or near to resonance circuits can be used to prevent the waste of electrical energy which would otherwise occur while the inductor built its field or the capacitor charged and discharged.
As an example asynchronous motors waste inductive current while synchronous ones waste capacitive current. Parallel resonance means when the circuit current is in phase with the applied voltage of an ac circuit containing an inductor and a capacitor connected together in parallel. Both parallel and series resonant circuits are used in induction heating. The resonanceof a parallel rlc circuitis a bit more involved than the series resonance.
