College Physics 10th Edition by Raymond Serway,Chris Vuille

Exercise 44

Suppose the conducting spherical shell of Figure 15.29 carries a charge of 3.00 nC and that a charge of 2.00 nC is at the center of the sphere. If a = 2.00 m and b = 2.40 m, find the electric field at (a) r = 1.50 m, (b) r = 2.20 m, and (c) r = 2.50 m. (d) What is the charge distribution on the sphere