Two part question involving a spherical cavity inside a shell and calculating:
a) the surface charge density
b) the electric field
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A spherical cavity of radius a, is at the center of a neutral (no net charge) spherical conductor of radius R. A charge q is placed at the center of the cavity. See Fig. 1 below.
(a) Find the surface charge densities on the surface of the cavity, σa, and the ...
A point charge is placed in a spherical cavity. The surface charge density and the field everywhere is determined.