A solid metal cube has a spherical cavity at its center as shown in Fig. 22-28. At the center of the cavity there is a point charge Q = +8.00 µC. The metal cube carries a net charge q = -6.00 µC (not including Q).
Figure 22-28
(a) Determine the total charge on the surface of the spherical cavity.
(b) Determine the total charge on the outer surface of the cube.
