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RDF Terms

Electric Displacement

In a dielectric material the presence of an electric field E causes the bound charges in the material (atomic nuclei and their electrons) to slightly separate, inducing a local electric dipole moment. The Electric Displacement Field, \(D\), is a vector field that accounts for the effects of free charges within such dielectric materials. This describes also the charge density on an extended surface that could be causing the field.

http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm?csnumber=31891

http://www.oxfordreference.com/view/10.1093/acref/9780199233991.001.0001/acref-9780199233991-e-895

\(D = \epsilon_0 E + P\), where \(\epsilon_0\) is the electric constant, \(E\) is electric field strength, and \(P\) is electric polarization.

D