Energy Density of Capacitor

Energy Density of Capacitor

### Formula

$$u=\frac{1}{2}\epsilon_0E^2$$

### With Dielectric Medium

$$u=\frac{1}{2}\epsilon E^2$$

### Terminologies

- u → Energy density.

- E → Electric field.

- ε → Permittivity of medium.

### SI Unit

$$Jm^{-3}$$

### Usage

- Used in energy stored per unit volume problems.