Teaching Research on the Experimental Methods of Calculating the Charge-to-Mass Ratio of Electron

DOI

10.2991/aermt-19.2019.64How to use a DOI?

Keywords

the charge-to-mass ratio of electron; Zeeman Effect; magnetic focusing method

Abstract

The charge-to-mass ratio of the electron is an important parameter in physics. There are many methods to calculate it, such as the Thompson method, Filter method, Magnetic focusing method, Zeeman Effect method, etc. This paper concentrates on the comparison and analysis of magnetic focusing method and Zeeman Effect method from three aspects of experimental principle, operation and relative error. Through in-depth analysis, the results show that the magnetic focusing method is suitable for students who are no-physics major. Compare with the Zeeman Effect method, the experimental principle and operation of magnetic focusing method are simpler. The experimental principle of Zeeman Effect method is relatively complex. It involves the knowledge of optics, electromagnetism and atomic physics. The Zeeman Effect method is more suitable for senior physics majors. The relative error of magnetic focusing method is 7.90%. The relative error of Zeeman method is smaller than the magnetic focusing method. It is 1.60%.

Copyright

© 2019, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xiaojuan Niu
AU  - Li Wang
AU  - Yafang Tu
AU  - Yu Tian
PY  - 2019/10
DA  - 2019/10
TI  - Teaching Research on the Experimental Methods of Calculating the Charge-to-Mass Ratio of Electron
BT  - Proceedings of the 2019 International Conference on Advanced Education Research and Modern Teaching (AERMT 2019)
PB  - Atlantis Press
SP  - 255
EP  - 257
SN  - 2352-5398
UR  - https://doi.org/10.2991/aermt-19.2019.64
DO  - 10.2991/aermt-19.2019.64
ID  - Niu2019/10
ER  -