# Energy Stored in the Electric Field Associated With a Charged Capacitor

## Energy Stored in a Capacitor

The energy stored in the electric field of a capacitor that is charged to a certain voltage is given by:

MathML formulaFormula ImageStraight text formula
$E = 0.5 C V 2$ E = 0.5 CV2

Where:

E = energy, Joules

C = capacitance, Farads

V = potential difference, Volts

Energy, E =