电位移矢量D与有电介质时高斯定理的理解  

Understanding Electric Displacement Vector D and Gauss Theorem in Electric Medium

作　　者：刘景世[1] 

机构地区：[1]宝鸡文理学院物理系,陕西宝鸡721007

出　　处：《海南大学学报（自然科学版）》2005年第4期375-377,382,共4页Natural Science Journal of Hainan University

基　　金：宝鸡文理学院重点建设课程(JG040006)

摘　　要：着重说明了电位移矢量D是一个辅助物理量,强调指出D与D的面积分的意义不同,以及D=ε0E0成立的条件,从而使初学者对D建立起一个全面和正确的认识.在此基础上,介绍利用有介质时的高斯定理解题的理论根据和特殊情况下高斯定理的应用,进一步加深对D的理解.This paper stressed on the fact that electric displacement vector is a supplementary physical ele- ment, focused on a difference between D and D surface integral and on the condition of D = ε0 E0 existence, and made a comprehensive and correct understanding for er. Based on these discussions, this paper introduced the theory of how to use Gauss Theorem to solve problem and how to use Gauss Theorem in special condition.

关 键 词：电位移矢量 极化电荷 电场强度 

分 类 号：O441.1[理学—电磁学]