Gauss Law and Metal in Eclectic Equilibrium (id: 6b1b73831)

本题目来源于试卷: Gauss Law and Metal in Eclectic Equilibrium，类别为 美国物理杯赛(Physics Bowl)

[单选题]
02.49: A solid, unchs9s)4frxs *ytar5v)wl;td 7+/ckp zpcsv,9dwo ged conducting sphere of radius 3a contains a hollowed spherical region of radius a. A point charge +Q is placed at the common center of the spheres. Taking V, 95d7kvt p pzowcc);l /+swdv = 0 as r → ∞ , the potential at position r =2 a from the center of the spheres is:

A. 0
B. $\frac{kQ}{3a}$
C. $\frac{kQ}{2a}$
D. $\frac{2kQ}{3a}$
E. $\frac{kQ}{a}$


参考答案:  B


本题详细解析: 暂无

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