# Parallel Resonant Circuit

A resonant circuit in which the source voltage is connected across a parallel circuit to furnish a high impedance to the frequency at which the circuit is resonant.

The undamped resonant angular frequency is given by:

The quality factor is given by:

Where

U = the stored energy in the systems

P = the mean power in the system

At frequencies close to resonance:

**See also: **Impedance, Resonant Circuit, Series Resonant Circuit.

**Subjects: ** Electronics