Question

what is dielectric constant?

Answer 1

Dielectric Constant or relative permittivity of a medium is defined as the ratio of force between two charges separated by a certain distance in the air (or Vaccum) to the force between the same charges separated by the same distance in the medium.It is denoted by K.

Answer 2

dielectric constant of a medium is a measure of its ability to permit the passage of electric field lines through it with respect to vacuum.