<Dl> <Dd> P = Δ p Δ V (\ displaystyle \ mathbf (P) = (\ frac (\ Delta \ mathbf (p)) (\ Delta V))) </Dd> </Dl> <Dd> P = Δ p Δ V (\ displaystyle \ mathbf (P) = (\ frac (\ Delta \ mathbf (p)) (\ Delta V))) </Dd> <P> In general, the dipole moment Δ p (\ displaystyle \ Delta \ mathbf (p)) changes from point to point within the dielectric . Hence, the polarization density P of a dielectric inside an infinitesimal volume dV with an infinitesimal dipole moment dp is: </P> <Dl> <Dd> P = d p d V (1) (\ displaystyle \ mathbf (P) = (\ mathrm (d) \ mathbf (p) \ over \ mathrm (d) V) \ qquad (1)) </Dd> </Dl>

What causes the polarization of charge in a conductor