欧姆定律微分形式微小误差研究  

The Correct Understanding of the 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

出　　处：《河南师范大学学报（自然科学版）》2001年第1期55-57,66,共4页Journal of Henan Normal University(Natural Science Edition)

摘　　要：以稳恒载流园直导线为例 ,根据保证稳恒电流的电荷分布特点 ,指出欧姆定律微小形式中的电场强度 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 straight wire with steady electric current is taken as an example.According to ensure the charge distribution character of the steady electric current,it is pointed that the electric field intensity in differential form of the law of Ohm is the component of the total electric field in the direction of electric current,and the deviation between this component and total electric field is small and their quantities are nearly equal.

关 键 词：欧姆定律 稳恒电流 电荷分布 电场强度 电流方向 微小误差 微分形式 

分 类 号：O441.1[理学—电磁学]