Question

How much energy can a capacitor store?

Answer 1

Capacitor: A capacitor is made up of two metal plates and a dielectric substance that acts as an insulator.

1. The metal plates are parallel and quite near to one another, but the dielectric lies between them to keep them from touching.
2. The electric potential energy stored in a capacitor is proportional to the capacitor's voltage and charge.
3. When a capacitor has a capacitance of $C$, it is originally uncharged and when connected to a battery, it develops a potential difference of $V.$
4. The energy stored in a capacitor is given by the equation:

$U=\frac{1}{2}C{V}^2$

where$U$ is the capacitor's stored electric potential energy, $C$is its capacitance, and $V$ is the potential difference.