摘要
本文首先给出了静电场中电场强度对任意闭合路径的环量恒为零的理解,任意闭合路径是对实际的宏观静电场问题而言的;接着给出了导体静电平衡问题的理解,静电平衡状态中的导体并非一定是理想导体,放在静电场中的导体只有满足能提供足够的电荷和一定的表面形状两个条件时才能处在静电平衡状态;最后给出了推导介质中高斯定理时应用的极化电荷总量的含义.
The paper gives three discussions. The first one is the understanding on that the circulation of the electric field intensity of an electrostatic field around any closed curve is equal to zero: any closed curve here is only used in actual macro -electrostatic fields. The second one is about some ideas on the balance of the conductor in electrostatic fields: the conductor here may be an imperfect electric conductor, it can be balanced only having enough charges and corresponding surface. The last one is giving the meaning of the total polarized charges in the closing surface used in introducing Gauss' law for dielectrics.
出处
《泰山学院学报》
2015年第3期136-139,共4页
Journal of Taishan University
关键词
环量
通量
静电平衡
circulation
flux
electrostatic equilibrium
作者简介
欧阳金华(1974-),男,山东肥城人,曲阜师范大学物理工程学院讲师.