1. What is a correct expression for the potential energy of the charge configuration illustrated below? Assume the sphere (of radius R) is uniformly charged. a2 kQq kQq, kq,92 А. R+a R+b kQq, kq,q2 kQq B. (R+a) " (R+b)? kQq, kq,q2 kQq С. a b kQq , kQq, kq,q, D. kQq, kQq, Е. b2
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