contains a uniformly-distributed charge Q; the larger sphere is grounded and of inner radius c.
The space between the conductors is filled with two non-conducting, charge-free dielectrics, of
permittivity & (a displacement field D in the space between the conductors. (b) Find the electric field E in the two dielectric media. (c) Determine the potential difference Vo between the conductors. (d) Determine the surface charge densities ps on the surfaces of the conductors.