Definition:Electric Polarization

Definition

Electric polarization is the slight relative shift of positive and negative electric charge in opposite directions within an insulator, induced by an external electric field.

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Symbol

$P$

The usual symbol used to denote electric polarization is $P$.

Its $\LaTeX$ code is P .

Dimension

Electric polarization has the dimension $\mathsf {I T L^{-2} }$.

Units

The SI unit of electric polarization is the coulomb per square metre: $\mathrm {C / m^2}$.

In the CGS unrationalised electromagnetic system, the unit of electric polarization is the electromagnetic unit of electric displacement $\mathrm {e.m.u.}$

In the CGS unrationalised electrostatic system, the unit of electric polarization is the electrostatic unit of electric displacement $\mathrm {e.s.u.}$

Conversion Factors

\(\ds \)

\(\)

\(\ds 1\)

coulomb per square metre

\(\ds \)

\(\approx\)

\(\ds 3 \times 10^5\)

e.s.u. of electric polarization

Also see

• Results about electric polarization can be found here.

Sources

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