Teaching Research on the Experimental Methods of Calculating the Charge-to-Mass Ratio of Electron
Xiaojuan Niu, Li Wang, Yafang Tu, Yu Tian
Available Online October 2019.
- https://doi.org/10.2991/aermt-19.2019.64How to use a DOI?
- the charge-to-mass ratio of electron; Zeeman Effect; magnetic focusing method
- 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%.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
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 - https://doi.org/10.2991/aermt-19.2019.64 ID - Niu2019/10 ER -