| 静电场中电场强度的数值意义 |
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| 引用本文： | 陈钢,晏世雷.静电场中电场强度的数值意义[J].物理与工程,2014(4):30-32. |
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| 作者姓名： | 陈钢 晏世雷 |
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| 作者单位： | 苏州大学物理科学与技术学院; |
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| 基金项目： | 普通物理学国家精品课程资助项目(SG315833) |
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| 摘 要： | “近场强远场弱”是静电场的普遍特点,宏观带电体的静电场是点电荷电场叠加的结果.本文以静电场中两个实际的电场强度问题为例,用相对数值比较了电荷分布对电场强度的贡献,阐述电场强度“近场强远场弱”的数值意义.
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| 关 键 词： | 静电场 电场强度 数值意义 |
NUMERICAL MEANING OF ELECTRIC FIELD INTENSITY IN ELECTROSTATIC FIELD |
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| Chen Gang Yan Shilei.NUMERICAL MEANING OF ELECTRIC FIELD INTENSITY IN ELECTROSTATIC FIELD[J].Physics and Engineering,2014(4):30-32. |
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| Authors: | Chen Gang Yan Shilei |
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| Institution: | Chen Gang Yan Shilei (School of Physical Science and Technology, Soochow University, Suzhou, Jiangsu 215006) |
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| Abstract: | ＂The near is strong, and the far is weak＂ is a general feature of the electrostatic field. The electrostatic field of a macro charged body is an accumulative result of point charge electric field intensity. This work took two real problems of electric field intensity in the elec trostatic field as examples. We compared the contribution of charge for electric field intensity by using of relative numerical value, and revealed the numerical meaning of electric field intensity that ＂the near is strong, and the far is weak＂. |
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| Keywords: | electrostatic field electric field intensity numerical meaning |
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