問題詳情
56. A conducting sphere is charged up such that the potential on its surface is 100 V (relative toinfinity). If the sphere's radius were twice as large, but the charge on the sphere were the same, whatwould be the potential on the surface relative to infinity?
(A) 25 V
(B) 50 V
(C) 100V
(D) 200 V
(E) 400 V
參考答案
答案：B
難度：計算中-1
書單：沒有書單，新增