| 电压与电势差 |
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| 引用本文： | 唐永光.电压与电势差[J].廊坊师范学院学报,2003,19(4):103-104. |
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| 作者姓名： | 唐永光 |
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| 作者单位： | 廊坊师范学院,物理系,河北,廊坊,065000 |
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| 摘 要： | 中学物理教学中通常把电压和电势差视为同义词．从电势差和电压的定义出发可以注意到，静电场为势场，静电场中电压和电势差是等效的；全电路中的电压与电势差在冷定路径下是等效的；部分电路中的稳恒电场与静电场性质相同，电压和电势差的等效关系也是相同的；涡旋电场为有旋场(非势场)，不存在电势的概念，但电压的定义仍然可以存在．
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| 关 键 词： | 电压 电势差 电场力作功 路径 |
| 文章编号： | 1671-1416(2003)04-0103-02 |
| 修稿时间： | 2003年8月17日 |
Voltage and Potential Difference |
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| TANG Yong - guang.Voltage and Potential Difference[J].Journal of Langfang Teachers College,2003,19(4):103-104. |
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| Authors: | TANG Yong - guang |
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| Abstract: | In middle school physics teaching, voltage and potential difference are regarded as synonyms. It can be noticed that from their definitions electrostatic field is potential field and in this field, voltage and potential difference are equivalent; in total electric circuit, voltage and potential difference are equivalent in given route; when in some electric circuits, steady electric field and electrostatic field have the same property, voltage and potential difference are equivalent; vortex electric field is rotational field, there doesn' t exist the concept of electric potential, but the definition of voltage does exist. |
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| Keywords: | voltage potential difference route |
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