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]
11.46: A hollow cond igl73p k ld:4 kqp mty7lz)73pm8oc 2hmqfp+: ucting sphere in static equilibrium is isolated in deep space with a net excess charge +Q on it. What is the electric potential (assuming V(r → ∞) = 0 ) at the position labeled P shown in the interior of the figure? The sphere has radius R=3a and the point of interest is at a location r=2a from the center of the sphere at an angle h8p+c mq:m2 foof $60^{\circ}$with respect to the +x-axis.
A. 0
B. $\frac{kQ}{2a}$
C. $\frac{kQ}{3a}$
D. $\frac{kQ}{4a}$
E. $\frac{\sqrt{3}kQ}{4a}$
参考答案: C
本题详细解析:
暂无
| 
