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 con .h iwg pzri+4ht-pe7 clw i/4.y3e+vpoavg;(ducting sphere of radi d x bl 5n,gd,t-z08dpuus 3a contains a hollowed spherical region of radius a. A point charge +Q is placed at the common center of the spher ,ddxd u,tpbg8-n5lz 0es. 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
|