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1.0兩個點電荷的斥力原為 F,若其中一個點電荷的電量,增加為原來的 2 倍,且兩個點電荷間的距離,也增加為原來的 2 倍,則其斥力為何? (A) 4F (B) 2F (C) F (D) (E) 。
問題詳情
1.0兩個點電荷的斥力原為 F,若其中一個點電荷的電量,增加為原來的 2 倍,且兩個點電荷間的距離,也增加為原來的 2 倍,則其斥力為何?
(A) 4F
(B) 2F
(C) F
(D)
(E)
。
參考答案
答案:D
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)
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