Question

║Explain the reduction of Electric field due to polarization of dielectric with the help of diagrams║


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Answer 1

Answer:

when a dipole moment is formed in an insulating material because of an externally applied electric field. When a current interacts with a dielectric (insulating) material, the dielectric material will respond with a shift in charge distribution with the positive charges aligning with the electric field and the negative charges aligning against it. By taking advantage of this response, important circuit elements such as capacitors can be made.

Introduction

Dielectric polarization is the term given to describe the behavior of a material when an external electric field is applied on it. A simple picture can be made using a capacitor as an example. The figure below shows an example of a dielectric material in between two conducting parallel plates. The charges in the material will have a response to the electric field caused by the plates.

ϵr=QQ0=CCo=ϵϵ0(1)

Answer 2

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Here is your answer -

Any dielectric material gets polarized when it is kept in a electric field . The polarization of the material minimizes the effect of external field . Hence , a dielectric decreases the electric field when placed in an external electric field . As we know that dielectric is an insulator . Also , we can associate another reason for this . The electric field induces a dipole moment by stretching or re orienting the molecules of dielectric . Net effect of these induced molecular dipole moment is production of a field that opposes the external field . Therefore the dielectric gets polarized in opposite direction and electric field inside the dielectric decreases / reduces .

As requested in Question images have been attached for a better understanding of the concept .