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  4. Assertion: Dielectric polarization means formation of positive and negative charges inside the dielectric. Reason: Free electrons are formed in this process.

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Q. Assertion: Dielectric polarization means formation of positive and negative charges inside the dielectric. Reason: Free electrons are formed in this process.

VMMC MedicalVMMC Medical 2006

Solution:

When an electric field is applied to the dielectric, each molecule of dielectric gets polarized i.e., centres of gravity of positive and negative charges get displaced from each other. On the left face, a net negative charge $ -{{q}_{i}} $ and on the right face, a positive charge $ +\,{{q}_{i}} $ appears. Thus, electric dipoles are produced inside. This is the dielectric polarization. Hence, option (c) is correct.