A property of a dielectric medium that determines the forces that electric charges placed in the medium exert on each other
Permittivity (e) is ratio of the electric displacement in a medium to the electric field strength Also called dielectric constant
the proportionality constant between the dielectric displacement D and the electric field E
Indicates the ability of a material to store electrical energy when a voltage is applied to it This may be considered a desirable property or an electrical loss depending on the application
preferred term for dielectric constant It is that property of a dielectric material that determines how much electrostatic energy can be stored per unit of volume when unit voltage is applied