問題詳情

37. When a cube is inscribed in a sphere of radius r, the length L of a side of the cube is L =

. If apositive point charge Q is placed at the center of the spherical surface, the ratio of the electric fluxQsphere at the spherical surface to the flux Qcbe at the surface of the cube is
(A)


(B)


(C)


(D)

參考答案

答案：C
難度：計算中-1
書單：沒有書單，新增