Question

What is the polarisation of dielectric

Answer 1

Dielectric polarisation means redistribution of charges in a dielectric.

A dielectric material may consist of polar molecules or non-polar molecules.

A polar molecule have permanent dipole moment . They are randomly oriented so that net dipole moment of the dielectric is zero.However they align themselves accordingly in a external electric field and give the dielectric material a net dipole moment.they arrange in such a way that net charge inside the dielectric is zero but there is a surface charge.on the whole net charge of the dielectric is zero.

Answer 2

of a material contain polar molecule they will generally in random orientation when electric feild is applied