define polar dielectric and non polar dielectric in short simple words?
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- Polar Dielectrics: Polar dielectrics are materials which have an inherent dipole moment. So the positive and negative charges are separated by a small distance in the absence of an electric field. If an external electric field is applied, the dipoles reorient themselves along the direction of the field. Ammonia and water is a good example of polar dielectrics.
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Polar Dielectrics: Polar dielectrics are those in which the possibility of center coinciding of the positive as well as negative charge is almost zero i.e. they don’t coincide with each other. The reason behind this is their shape. They all are of asymmetric shape. Some of the examples of the polar dielectrics is NH3, HCL, water etc.
Non Polar dielectrics: In case of non polar dielectrics the centres of both positive as well as negative charges coincide. Dipole moment of each molecule in non polar system is zero. All those molecules which belong to this category are symmetric in nature. Examples of non polar dielectrics are: methane , benzene etc.
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