大学物理 ›› 2005, Vol. 24 ›› Issue (11): 28-28.

• 著者文摘 • 上一篇    下一篇

用亥姆霍兹定理讨论电位移

胡毅   

  1. 郧阳师范高等专科学校物理系,湖北丹江口442700
  • 出版日期:2005-11-25 发布日期:2005-11-20

Electric displacement vector:from the perspective of Helmholtz's theorem

  • Online:2005-11-25 Published:2005-11-20

摘要: 从亥姆霍兹定理出发,阐明了电位移与场源之间的内在联系,指出电位移不仅与自由电荷分布有关,而且还与电介质、极化电荷及边界条件有关;着重分析了电位移仅与自由电荷分布有关的条件.

关键词: 亥姆霍兹定理, 电位移, 自由电荷

Abstract: From the perspective of Helmholtz's theorem, the inherent relationship between electric displacement vector and the source is made clear, and that the electric displacement vector is relevant to dielectric, polarization charge and the boundary conditions as well as the distribution of free charge is pointed out, putting emphasis on the prerequisites for interaction between electric displacement vector and the distribution of free charge.

Key words: Helmholtz's theorem, electric displacement vector, free charge

中图分类号: 

  • O441.1