| 静电场电势零点的选择 |
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| 引用本文： | 周兰.静电场电势零点的选择[J].喀什师范学院学报,2007,28(3):40-45. |
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| 作者姓名： | 周兰 |
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| 作者单位： | 湖南人文科技学院,教务处,湖南,娄底,417000 |
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| 摘 要： | 电势零点的选取有一定的任意性,但不是完全任意的,它受到一定的限制.电势零点的选取受到一定的限制并有其自身规律,电荷分布在有限区域及电荷分布扩展到无限远处时,电势零点的选择及零点选取不同时电势能否叠加、如何叠加等问题都是值得探讨的.
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| 关 键 词： | 静电场 电势零点 无穷远点 参考点 叠加 |
| 文章编号： | 1006-432X（2007）03-0040-06 |
| 修稿时间： | 2006-11-25 |
How to Select the Electric Potential Zero Point of Static Electric Field |
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| ZHOU Lan.How to Select the Electric Potential Zero Point of Static Electric Field[J].Journal of Kashgar Teachers College,2007,28(3):40-45. |
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| Authors: | ZHOU Lan |
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| Abstract: | First of all,this article points out that the electric potential zero point may be but is not always chosen arbitrarily.It is limited to a certain degree;Secondly,it discusses the principle to choose zero point in the potential,including the electric potential of each point in electric field must fist have a definite numerical value so as to make sense definitely in physics,and the potential formula indicated should be made as simple as possible;Then it expounds the restrictions and laws about the electric potential zero point,including how to select the zero point when electric charge is distributed definite area and infinite area.In the end it also discusses the situation of selecting the earth and the infinite point being the electric potential zero point,and the superimposition of the electric potential with different zero point. |
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| Keywords: | Static electric field Electric potential zero point Infinite distant point Point of reference Superimposition |
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