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Unformatted text preview: We will group dielectrics into two types: polar and non-polar. In polar dielectrics, the molecules intrinsically have some separation of positive and negative charge. Water molecules are an example of such an intrinsic charge separation. If an electric field is applied to a polar dielectric molecule, the molecule will first experience a torque (below left). After some time, the molecule will tend to align with the field in such a way that the torque vanishes (below right). A non-polar dielectric has no intrinsic charge separation from one side of the atom or molecule to the other. When an electric field is applied to a non-polar dielectric molecule, the charge distribution, which is at first symmetric (below left) will deform in such a way that it has an overall induced charge separation (below right)...
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