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Dictionary of Electrical Engineering
Commonly used terms in the Electrical industry.
electric polarization vector
an auxiliary vector in electromagnetics that accounts for the creation of atomic dipoles in a dielectric material due to an applied electric field. Macroscopically, the electric polarization vector is equal to the average number of electric dipole moments per unit volume. Mathematically, P = D - Є
E, where D is the electric flux density, E is the electric field intensity, and Є
is the free space permittivity. SI units are coulombs per square meter.
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