(Solved):
4.29 A spherical shell with outer radius b surrounds a charge-free cavity of radius a<b (Fig. P ...
4.29 A spherical shell with outer radius b surrounds a charge-free cavity of radius a<b (Fig. P4.29). If the shell contains a charge density given by ?v?=?R2?v0??,a?R?b where ?v0? is a positive constant, determine D in all regions.