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Displacement Current Density

\(\textbf{Displacement Current Density}\) is the time rate of change of the \(\textit{Electric Flux Density}\). This is a measure of how quickly the electric field changes if we observe it as a function of time. This is different than if we look at how the electric field changes spatially, that is, over a region of space for a fixed amount of time.

http://dbpedia.org/resource/Electric_flux

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

http://www.maxwells-equations.com/math/partial-electric-flux.php

\(J_D = \frac{\partial D}{\partial t}\), where \(D\) is electric flux density and \(t\) is time.

\(J_D\)