→ GLP:c吧 @@ 07/03 07:50
→ GLP:400題第258題 07/03 07:54
A parallel-plate capacitor has charge Q and plates of area A.What force acts on one
plate to attract it toward the other plate?
(A)Q^2/εA
(B)2Q^2/εA
(C)Q^2/2εA
(D)Q^2/3εA
(E)3Q^2/εA
請問是哪一個
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