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How does dielectric constant depend on nature of medium?

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How does dielectric constant depend on nature of medium?
Does this have any relation with free electrons and force between molecules?

-Vaanya Asked

Answer:

Dielectric Constant, also called relative permitivity of a medium depends on the electric susceptibility of it, the ease with electric flux lines can pass through it.

The susceptibility depend on molecular polarization, the electric dipole moment acquired per unit volume in an external electric field.

So, the thing to note is that, dielectric constant is a physical quantity measured as a comparison of the strength of electric field in vacuum to that inside the material.

Dielectric ConstantDielectric constant can be defined in terms of electrostatic force

Dielectric Constant can also be defined in terms of capacitance.

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