APFIVE Electric Potential of a Conducting Sphere
A hollow conducting sphere of radius R carries a net charge Q distributed uniformly on its surface. A point charge q is placed at a distance 2R from the center of the sphere. By what factor does the electric potential at the center of the sphere change when the point charge is moved to infinity?
A
It decreases by a factor of Q/(Q + q/2)
B
It changes by a factor of Q/(4πε₀R)
C
It changes by a factor of q/(4πε₀R)
D
It changes by a factor of qQ/(4πε₀R²)
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