問題詳情

48. Point charges q and Q are positioned as shown. If q = +2.0 nC, Q = -2.0 nC, a = 3.0 m, and b = 4.0m, what is the clectric potential difference,

?


(A)8.4 V
(B)6.0 V
(C)7.2 V
(D)4.8 V
(E) O V

參考答案

答案：D
難度：計算中-1
書單：沒有書單，新增