| 静电场的能量与能量密度 |
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| 引用本文： | 蒋学华.静电场的能量与能量密度[J].通化师范学院学报,2003,24(4):17-20. |
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| 作者姓名： | 蒋学华 |
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| 作者单位： | 临沂师范学院物理系,山东临沂,276005 |
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| 摘 要： | 导出了静电场在真空和电介质中的能量与能量密度公式，并讨论了电场能与能量密度的物理涵义，同时阐明了电势能、静电能、电场能的区别和联系，分析了电介质对静电场能量密度的影响，确定了静电场能量的分布规律，表明静电场的能量定域在电场中，电场是电场能量的承载。
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| 关 键 词： | 静电场 电势能 静电能 电场能 能量密度 电磁学教材 |
| 文章编号： | 1008-7974(2003)04-0017-04 |
| 修稿时间： | 2003年4月9日 |
The Energy and Energy Density of Electrostatic Field |
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| JIANG Xue - hua.The Energy and Energy Density of Electrostatic Field[J].Journal of Tonghua Teachers College,2003,24(4):17-20. |
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| Authors: | JIANG Xue - hua |
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| Abstract: | The formula of energy and energy density of electrostatic field in vacuum and dielectric are obtained. The physical definition of electrical field energy and energy density are discussed. At the same time the differences and connections among electric potential energy, electrostatic energy and electrical energy are expounded. The effect of dielectric on the energy density of electrostatic field is analyzed. The scattering rule of electrical field energy is defined and it is showed that electrical field energy is included in electrostatic field. |
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| Keywords: | electrostatic field electric potential energy electrostatic energy electrical field energy energy density |
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