Question

Define dielectric constant of a medium what is its si unit

Answer 1

The dielectric constant is the ratio of the permittivity of a substance to the permittivity of free space.it's unit f/m

Answer 2

Explanation:

Dielectric constant: it is  defined as the capacitance with dielectric in medium to the capacitance with vacuum. It is also defined as the ratio of the permittivity of the material to the permittivity of free space. It has no unit.

The mathematical formula for the dielectric constant is as follows;

$k=\frac{\epsilon _{r}}{\epsilon _{0}}$

Here, $\epsilon _{r}$ is the permittivity of medium, $\epsilon _{0}}$ is the permittivity of free space and k is the dielectric constant.

It is the property of an electrical insulating material.