Electronics & Circuits
Advanced

Quality Factor

Sharpness of a resonant peak.

Formula

Q=f0ΔfQ = \frac{f_0}{\Delta f}

Variables

f_0Resonant frequency
\Delta fBandwidth

Example

Higher Q = narrower band

Did You Know?

A high Q factor means a sharply tuned circuit, letting a radio pick one station cleanly from many.

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