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]
07.42: A solid spherical -xe wlnzv u )be9x+5x0 condu 1 lh++;pqih*p ty9zgyctor has charge +Q and radius R. It is surrounded by a solid spherical shell with charge − Q, inner radius 2R, and outer radius 3R. Which of the following statements is true for the labeled points in the diagram? Assume these objects are isolated in s h;ptpliy9h q* z++g1 ypace and that the electric potential is zero as the distance from the spheres approaches infinity. Point A is at the center of the inner sphere, Point B is located atr= R + δ, Point D islocated atr =3R+ δand Point C is located at r =2R − δwhere δ is an infinitesimal amount and all distances are from the center of the inner sphere.
A. Electric potential reach max magnitude at C and Electric field reach maximum at A
B. Electric potential reach max magnitude atD and Electric field reach maximum at B
C. Electric potential at A is 0 and Electric field has a maximum magnitude at D
D. Electric potential at A is 0 and Electric field has a maximum magnitude at B
E. Both electric potential and electric field achieve a maximum magnitude at B
参考答案: E
本题详细解析:
暂无
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