欧姆定律微分形式微小误差研究  

Study on Small Errors of Differential Form of Ohm's Law

作　　者：李冠成[1] 卢佃清[1] 李明[1] 邵理堂[1] 闫锡杰[2] 

机构地区：[1]淮海工学院基础科学系,江苏连云港222005 [2]通化师范学院物理系,吉林通化134002

出　　处：《山东科技大学学报（自然科学版）》2001年第2期32-34,共3页Journal of Shandong University of Science and Technology(Natural Science)

摘　　要：以稳恒载流圆直导线为例 ,根据保证稳恒电流的电荷分布特点 ,指出欧姆定律微分形式中的电场强度 E应是总电场在电流方向的分量 ,同时又指出一般情况下这一分量与总电场方向偏差很小 。The round and straight wire with steady electric current is taken as an example. According to the charge distribution character ensuring the steady electirc current, it is pointed that the electric field intensity E in differential form of the Ohm's law is the component of the total electric field in the direction of electric current, and the deviation between the component and total electric field direction is quite small and their quantities are nearly equal.

关 键 词：总电场 欧姆定律 微分形式 微小误差 电流 电荷分布 

分 类 号：O441.1[理学—电磁学]