# Formula Capacitor Electrical energy    Capacitance

## Electrical energy

Unit
Energy stored in the electric field of a plate capacitor. The formula is also valid for other charged bodies.

## Capacitance

Unit
Capacitance is a measure of how good the plate capacitor is at storing charge on the plates.

## Electric charge

Unit
The amount of charge that is on the capacitor plates (electrodes). On one electrode the charge is negative $$-Q$$ and on the other electrode it is positive $$+Q$$.