6. A charge q sits at the back corner of a cube, as shown. The length of the edge of the cube is L and the permittivity constant is ε₀. What is the flux of electric field E through the shaded surface of the figure?

(A)
(B)
(C)
(D)
(E)

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詳解 (共 1 筆)

#7441380
所以這題看到點電荷放在立方體角落
陰影面是斜三角形
所以要想到鏡射八面,是封閉八面體
6a549aae85425.jpg
前提條件是
6a549ad462333.jpg
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