# Blog

## What is series LC circuit impedance calculator? ## What is the impedance of LC circuit at resonant frequency?

• Several graphs of the series LC circuit impedance ZLC against frequency f for a given inductance and capacitance show zero impedance at resonant frequencies. When the frequency increases, the inductor’s reactance is increasing and the capacitor’s reactance is decreasing.

## Why is current supplied to a series LC circuit maximum?

• Thus at resonant condition when total electrical impedance Z will be zero means X L and X C cancel out each other. hence, current supplied to a series LC circuit is maximum ( ). Therefore the series LC circuit, when connected in series with the load, will act as a band-pass filter having zero impedance at the resonant frequency.

## What is an LC circuit?

• An LC circuit, also known as a tank circuit, a tuned circuit, or a resonant circuit, is an electric circuit that consists of a capacitor marked by the letter “C” and an inductor signified by the letter “L.” These circuits are used to generate signals at a specific frequency or to accept a signal from a more complex signal at a specific frequency.  