# How can capacitance be increased?

Mar 2, 2018

By introducing a dielectric slab in between the plates.

#### Explanation:

Capacitance of a parellel plate capacitor is given by

$\text{C" = (ε_0"A")/"d}$

On introduction of a dielectric slab of dielectric constant $K$ in an isolated charged capacitor

$\text{C’" = (Kepsilon_0"A")/"d}$

$\text{C’" = K"C}$

Capacitance becomes $K$ times of original capacitor.