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24 如圖所示,在 x = d 及 x = -d 處分別放置+Q 及-Q 之電荷,A、B 兩點位於 y 軸,其座標分別為 y = d 及 y = 2d。若 A 點的電場強度為 E,則 B 點
問題詳情
24 如圖所示,在 x = d 及 x = -d 處分別放置+Q 及-Q 之電荷,A、B 兩點位於 y 軸,其座標分別為 y = d 及 y = 2d。若 A 點的電場強度為 E,則 B 點電場強度為何?
(A)
(B)
(C)
(D) 0
參考答案
答案:A
難度:困難0.245614
統計:A(14),B(12),C(8),D(8),E(0)
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