# Capacitance

Written by Jerry Ratzlaff on . Posted in Electrical Engineering

Capacitance, abbreviated as C or CAP, is the ability to hold an electric charge.

## Capacitance Formulas

 $$\large{ C = \frac{ Q }{ V } }$$ $$\large{ C = \frac{ \epsilon \; A }{ d } }$$

### Where:

$$\large{ C }$$ = capacitance

$$\large{ A }$$ = active area of the plate

$$\large{ Q }$$ = electrical charge that is stored on the capacitor

$$\large{ \epsilon }$$ = permittivity of the dielectric medium

$$\large{ d }$$ = perpendicular distance between conductors

$$\large{ V }$$ = potential difference (the voltage between the capacitor's plates)

### Solve for:

$$\large{ Q = C \; V }$$

$$\large{ V = \frac{ Q }{ C } }$$

Tags: Electrical Equations