电磁能量和角动量守恒的一致性讨论  

Discussion on the Consistency of the Conservation of Electromagnetic Energy and Angular Momentum

作　　者：杨一军[1] 赵鑫[1] 王江涛[1] 邹峰[1] 姜恩华[1] 

机构地区：[1]淮北师范大学物理与电子信息学院,安徽淮北235000

出　　处：《淮北师范大学学报（自然科学版）》2016年第4期48-51,共4页Journal of Huaibei Normal University：Natural Sciences

基　　金：安徽省高等学校自然科学研究一般项目(KJ2016B005);安徽省教育厅名师工作室(2015msgzs138);一般教研项目(2014jyxm166;2015jyxm163);线性电子线路资源共享课(2012gxk057)

摘　　要：通过分析处于变化外磁场中带电导体的行为,发现各种形式能量同时出现的现象,经计算,给出电磁能流、电磁能量、焦尔热能和机械转动能量间关系,并用电磁体系的角动量守恒定律加以佐证,说明守恒律的一致性.By analyzing a charged conductor placed in changing magnetic field,it is found that a phenomenaof different energy forms appeared simultaneously. The relations among the energy flux,electromagnetic ener-gy,Joule heat and the rotational mechanical energy are presented by calculating,and it is verified by usingthe conservation of angular momentum for the electromagnetic system.Consequently,the consistency of theconversation laws for the charged system is given.

关 键 词：电场 磁场 电磁能量 电磁角动量 

分 类 号：O441[理学—电磁学]