非闭合导体中感应电流的理论分析与实验设计  

Theoretical analysis and experimental design of induced current in a nonclosed conductor

作　　者：宗卫华[1] 王英[1] 于海生[1] 

机构地区：[1]青岛大学自动化工程学院

出　　处：《实验技术与管理》2009年第12期35-37,共3页Experimental Technology and Management

基　　金：教育部质量工程项目“电子信息与电气类专业教学改革创新实验区”(2007-148)

摘　　要：在法拉第电磁感应的教学中，有一错误的观点：感应电流只能存在于闭合导体回路中，不能存在于非闭合导体结构中。该文从电场的角度分析了感应电流可以存在于非闭合导体中，并将感应电流与直流电流做了比较，指出了两者的相同和不同之处。在此基础上，设计了一种检测和分析感应电流的实验方法。A wrong opinion is widely accepted in the teaching of Faraday＇s law of electromagnetic induction. The opinion says that the induced current can only flow in a conductor with a closed-loop structure. Based on the field theory, this paper analyses that the induced current can flow in a conductor with any shape, and also presents the similarities and differences between the induced current and the direct current. An experimental method to check and analyze the induced current is put forward.

关 键 词：法拉第电磁感应定律 麦克斯韦方程 感应电流 直流电流 

分 类 号：O441.3[理学—电磁学]