The electric displacement field is defined as:
\boldsymbol{D} = \varepsilon_0 \boldsymbol{E} + \boldsymbol{P}\ =\varepsilon \boldsymbol{E}.

where:
    ?0 is the permittivity of free space
    E is the electric field intensity
    P is the polarization of the medium

The folliwing use RC-circuit to show relation between displacement current and electric field.

To make it easier, the value of ?0 is assigned as 0.5

Un-check the off check box to connect the DC voltage source to the RC circuit (ON).
k is the dielectric constant \varepsilon/\varepsilon_0.
You can adjust voltage source Vs, resistance R, capacitance C.

translate strings in simulation to different language format before download
Full screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License
Download EJS jar file(1440.3kB):double click downloaded file to run it. (38 times by 20 users) , Download EJS source (5 times by 5 users) View EJS source