| 电磁场流密度的研究 |
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| 引用本文： | 杨明智,陈宏.电磁场流密度的研究[J].陕西教育学院学报,2009,25(1):78-80. |
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| 作者姓名： | 杨明智 陈宏 |
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| 作者单位： | 陕西教育学院数理工程系,陕西西安,710061 |
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| 摘 要： | 文章通过相对论协变下的四维电磁场能量——动量张量Tik的引入，使电磁场的能量守恒和动量守恒定律合并为一个四维的相对论协变式 Tik/ Xk=-μ0Fikjk；同时讨论了在无电荷分布的区域内，电磁场物理量流密度的散度等于零，亦即电磁场守恒定律四维形式。
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| 关 键 词： | 电磁场 能量-动量张量 守恒定律 |
On Electromagnetic Fields Flux Density |
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| YANG Ming-zhi,CHEN Hong.On Electromagnetic Fields Flux Density[J].Journal of Shaanxi Institute of Education,2009,25(1):78-80. |
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| Authors: | YANG Ming-zhi CHEN Hong |
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| Institution: | Department of Mathematic and Physics Engineering;Shaanxi Institute of Education;Xi'an 710061;China |
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| Abstract: | The purpose of this article is to prove the 4 - dimensional Relativistic Covariant as Tik/ Xk=-μ0Fikjk ,the result of combining law of conversation of energy with law of conversation of momentum through studying the behaviors of energy with momentum tensor Tik in 4 - dimensional electromagnetic fields with relativistic covariant researching method; Moreover, the article also finds evidence to support the law of conservation of 4- dimensional electromagnetic fields, which the physical quantity of flux density distribution equals to zero in no charge fields. |
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| Keywords: | electromagnetic fields energy-momentum tensor law of Conservation |
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