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Dielectric materials.
Simple physical picture of “bound” charges. Dipole moment and polarisation. Surface and volume polarisation charge densities. Polarisation current density.
SOME WORKED EXAMPLES RELATING TO LECTURE 5
What you need to know
You need to know the definitions of the dipole moment and polarisation (dipole moment/unit volume). You should also be aware of the approach used to obtain, and remember the expressions for, the surface and volume charge densities and also the current density.