Question

what do you understand by polarization of a dielectric.?

Answer 1

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What do you understand by polarization of a dielectric.?

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$\Large\bold\star\underline{\underline\textbf{Polarization of a dielectric\:}}$

→ When a non-polar dielectric is placed in an electric field, the positive and negative charges of non-polar molecules are displaced in opposite direction. The movement of positive and negative charges produce restoring force in the molecule. The displacement of positive and negative charges stops when external force on constituent charges of the molecule is balanced by restoring force.


» The alignment of molecules of non-polar dielectric in the external electric field is shown in the figure.The charges inside the dotted line cancel the effect of each other. So one face of dielectric becomes negatively charged while other face becomes positively charged.

» These charges are called induced charges. The process of inducing equal to the opposite charges on the faces of dielectric in external electric field is called polarisation.










Hope it helped u.

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