| 用板式电势差计测量电池的电动势和内阻实验的改进 |
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| 引用本文： | 宋钢,翟林华. 用板式电势差计测量电池的电动势和内阻实验的改进[J]. 物理实验, 2004, 24(11): 41-43 |
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| 作者姓名： | 宋钢 翟林华 |
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| 作者单位： | 1. 合肥工业大学,理学院,安徽,合肥,230009
2. 安徽师范大学,物理系,安徽,芜湖,241000 |
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| 摘 要： | 分析了在“用板式电势差计测量电池的电动势和内阻”实验中 ,由于待测干电池的电动势和内阻在实验过程中均不为恒定值而引起的误差 ,依据电化学理论和电阻构成解释了实验现象 ,并给出了实验改进方案 .
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| 关 键 词： | 板式电势差计 干电池 电动势 内阻 |
| 文章编号： | 1005-4642(2004)11-0041-03 |
| 修稿时间： | 2004-03-14 |
Improvement on the experiment of measuring the emf and internal resistance of the dry cell with potentiometer |
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| SONG Gang ,ZHAI Lin-hua. Improvement on the experiment of measuring the emf and internal resistance of the dry cell with potentiometer[J]. Physics Experimentation, 2004, 24(11): 41-43 |
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| Authors: | SONG Gang ZHAI Lin-hua |
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| Affiliation: | SONG Gang 1,ZHAI Lin-hua 2 |
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| Abstract: | This paper pointed out the error caused by the change of emf and internal resistance of dry cell, which exist in the experiment of the measurement of the emf and internal resistance of the dry cell with potentiometer. The experimental phenomenon can be explained using the theory of electro-chemistry and the made-up of resistance. The improved experimental design is given. |
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| Keywords: | potentiometer dry cell emf internal resistance |
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