Q1) Two spheres (concentric conducting) have a radius of () and (4) cm. They have a perfect dielectric between them (8r XXXXXXXXXXThe potential of inner sphere is (2V) and the outer is * (- 2V) ,...

Q1) Two spheres (concentric conducting) have a radius of () and (4) cm. They have a perfect dielectric between them (8r - 4) . The potential of inner sphere is (2V) and the outer is * (- 2V) , Calculate : A) V(r) . B E(r) . C) V at r = 4 cm . D) The location of the (0 - v) equipotential surface. E) The capacitance between them.