問題詳情
14. In electrostatic equilibrium, the electric field just outside any charged con-ductor is
(A) always zero；
(B) always perpendicular to the surface of theconductor；
(C)always parallel to the surface of the conductor, along the gra-dient of the surface charge distribution；
(D) always parallel to the surface,but perpendicular to the gradient of the surface charge distribution,
(E) of noparticular direction.
參考答案
答案：B
難度：計算中-1
書單：沒有書單，新增