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J J Thomson and the Discovery of the Electron

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PhysicsEducation1997postprint.pdf (112.8Kb)
Date
1999
Author
Falconer, Isobel Jessie
Keywords
Electron
History of physics
History of science
Q Science
History and Philosophy of Science
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Abstract
One experiment, more than any other, is often associated with the `discovery of the electron' in 1897. This is J J Thomson's determination of the mass to charge ratio (m/e) of cathode rays by deflecting them in magnetic and electric fields. Yet this experiment was performed two months after Thomson first announced that cathode rays were very small, negatively charged particles. So why was it important? I look at Thomson's route to, and conduct of, the experiment, and then at how his ideas were received.
Citation
Falconer , I J 1999 , ' J J Thomson and the Discovery of the Electron ' , Physics Education , vol. 32 , pp. 226-231 . https://doi.org/10.1088/0031-9120/32/4/015
Publication
Physics Education
Status
Peer reviewed
DOI
https://doi.org/10.1088/0031-9120/32/4/015
ISSN
0031-9120
Type
Journal article
Rights
© 1997. IOPScience. Please cite: Isobel Falconer (1999), ‘J J Thomson and the discovery of the electron’ Physics Education, vol 32, pp226-231, http://iopscience.iop.org/0031-9120/32/4/015
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  • University of St Andrews Research
URL
http://iopscience.iop.org/0031-9120/32/4/015
URI
http://hdl.handle.net/10023/4991

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