A thin spherical shell of metal has a radius of 0.25 meter and carries a charge 0.2 mC. Calculate the electric intensity at a point (i) inside the shell, (ii) just outside the shell (iii) 3 m from the center of the shell. (Ans: zero ; 2.88 x 104 N/C ; 200 N/C) 4. Two large, thin metal
