A hollow metal sphere has inner radius a, outer radius b,
Chapter 27, Problem 27.86(choose chapter or problem)
A hollow metal sphere has inner radius a, outer radius b, and conductivity s. The current I is radially outward from the inner surface to the outer surface. a. Find an expression for the electric field strength inside the metal as a function of the radius r from the center. b. Evaluate the electric field strength at the inner and outer surfaces of a copper sphere if a = 1.0 cm, b = 2.5 cm, and I = 25 A
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