# dielectric constant

## Definition

### Electronics

- For a given material, the property which determines the
__electrostatic energy__that can be stored per__unit____volume__for a unit__potential gradient__. This is equivalent to the ratio of the capacitance of a__capacitor__using the material in question as a dielectric, to the capacitance of a capacitor using a vacuum as a dielectric. The dielectric__constant__of a vacuum is defined as 1, and for most calculations air is also considered to have this value. Also known as relative dielectric constant, permittivity, relative permittivity, specific inductive capacity, or inductivity.