Electric Potential of Concentric Spheres
Two concentric spherical shells have radii a and b, where b > a. The inner shell has a charge of +Q, and the outer shell has a charge of -Q. What is the electric potential at a distance r from the center, in the region where a < r < b?
A
V = (1/4πε₀)(Q/r)
B
V = 0
C
V = (1/4πε₀)(Q/r - Q/b)
D
V = (1/4πε₀)(Q/a - Q/b)
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