摘要
处于外磁场中圆柱形带电体 ,当外磁场变化时 ,带电体将旋转 .本文分别用电磁体系的能量守恒和角动量守恒对其进行讨论 。
A uniformly charged cglindrical tube rotates when the external magnetic field is varying. This example is analysed by two methods: by using conservation of energy and conservation of angular momentum respectively.
出处
《大学物理》
北大核心
2002年第3期24-25,27,共3页
College Physics
