ABSTRACT
This chapter discusses the methods for dealing with a special class of source terms, the charges and currents due to polarization and magnetization of a medium. It shows for these cases the introduction of auxiliary fields enables students to "hide" the source terms so that the equations appear homogeneous. The polarization of the medium produces a polarization charge proportional to the free charge and of opposite sign. The magnetic field BO outside the cylinder and far from it is uniform and transverse to the axis of the cylinder. As for the electrostatic case the boundary conditions at the interface between two magnetic media are obtained by integrating over the rapidly changing region in the neighborhood of the interface.
