大学物理 ›› 2012, Vol. 31 ›› Issue (12): 24-24.
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郝军华 野仕伟
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摘要: 随着科学技术的发展,出现了多种测定电子比荷的方法,其中在近代物理实验中常用的方法是磁聚焦法.本文在此实验设备和实验方法的基础上,研究了实验测量过程中荧光屏上显示扫描的线段随所加励磁电流的变化关系,并进一步对实验提出了改进意见.
关键词: 磁聚焦, 电子比荷, 励磁电流, 电压偏转板
Abstract: In modern physics experiments, the magnetic focusing method is an effective and commonly used method of determining the electronic specific charge. On the basis of the standard laboratory equipment and experimental method, the relationship between the scan line length on screen and the excitation current is studied. An improvement of the experiment is suggested.
Key words: magnetic focusing, electronic specific charge, exciting current, voltage plate
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郝军华 野仕伟. 磁聚焦法测定电子比荷实验的改进方法探究[J]. 大学物理, 2012, 31(12): 24-24.
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