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a metal ball of radius R is placed concentrically inside a hollow metal sphere of inner radius 2R & outer radius 3R. The ballis given a charge +2Q and the hollow sphere a total charge -Q. Calculate. electrostatic potential energy of system.???
7 years ago

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Answered by bobpursley
U=k 2Q*Q/R^2 Am I missing something here?
7 years ago

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