Electron Charge to Mass Ratio/Historical Note
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Historical Note on Electron Charge to Mass Ratio
When an electrode is charged to a high electric potential in a high vacuum, it is observed to emit rays.
This had been established over the course of several decades of experiments by a number of workers.
These rays were called cathode rays.
It was the work of Joseph John Thomson in $1897$ to attempt to establish some basic facts about these cathode rays.
Sources
- 1978: A.P. French and Edwin F. Taylor: An Introduction to Quantum Physics ... (previous) ... (next): $1$: Simple models of the atom: $\text {1-3}$: The Electrical Structure of Matter