Le site de vulgarisation scientifique de l’Université de Liège. ULg, Université de Liège
Electric polarization

A material has electric polarization (or is an electric dipole) when the positive charges it contains are equal in number to its negative charges, but the centres of gravity of the two types of charges do not correspond with each other. Electric polarization is defined as the electric dipole moment per unit of volume.

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