Question

Write a relation for polarisation $\overrightarrow{P}$ of a dielectric material in the presence of an external electric field $\overrightarrow{E}$.

Answer 1

The relationship between polarization $P$ of a electric materials in the presence of an electric field is given by:-

$P=X{\epsilon }_{o}E$

where,

$X=$ Susceptibility of the medium in which the dielectric materials present.

${\epsilon }_o=$ Permitivity of free space.

$E=$ Intensity of the electric field.