A spherical shell of radius 15 cm carries 4.8 C distributed uniformly over its surface
Chapter 21, Problem 52(choose chapter or problem)
A spherical shell of radius 15 cm carries 4.8 C distributed uniformly over its surface. At the center of the shell is a point charge. If the electric field at the spheres surface is 750 kN/C and points outward, what are (a) the point charge and (b) the field just inside the shell?
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