A positive point charge of magnitude 2.5 μC is at thecenter of an uncharged spherical conducting shell of inner radius60 cm and outer radius 90 cm.
(a) Find the charge densities on the inner & outer surfaces ofthe shell & the total charge on each surface.
(b) Find the electric field everywhere.
(c) Repeat parts a & b with a net charge of +3.5μC.