Electric potential of charged metal sphere · PhysicsBowl 2019 #3
Physics · electromagnetism
Problem
An isolated solid metal sphere with a radius R is given a positive charge Q. The electric potential at the surface of the sphere is V. What is the electric potential at a distance of 0.5R from the center of the sphere?
(A) zero (B) 0.5V (C) V (D) 2V (E) 4V