电容器和螺绕环运动时电磁场的能量  

Energy of Electromagnetic Fields for Capacitor and Toroid in Motion

作　　者：苑新喜[1] 

机构地区：[1]中国地质大学数学与物理学院,武汉430074

出　　处：《空间电子技术》2016年第1期20-23,共4页Space Electronic Technology

摘　　要：文章依据电磁场的相对论变换,计算了有填充介质的电容器和螺绕环在特定方向运动时电磁场的能量。计算结果表明该电磁场的能量与其静止时能量的比率不仅与其运动速率和运动方向有关,还分别与其各自填充介质的相对介电常数和相对磁导率有关。According to relativistic electromagnetic fields transformation,when capacitor and toroid that were filled with medium are moving along special directions,calculations for energy of electromagnetic fields were given. The results show that the ratio of the energy and static energy is not only relevant with the speed and the direction of moving,but also with the relative permittivity and the relative permeability of the media respectively.

关 键 词：能量 电磁场 电容器 螺绕环 

分 类 号：O311[理学—一般力学与力学基础]