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, uncharged conducting sphere of radius 3a contains a hollowedgfn0c 0o mwx 6b(cg(/l sph wncbo( (0c6gfm xlg0/ x99ioc.4jyo verical region of radius a. A point charge +Q is placed at the x 4v9o.joyc 9i common center of the spheres. Taking V = 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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