An Introduction to the Life of J. J. Thomas (287 words, 2 pages)
Mini-ResearchELECTRON- In 1897, Sir J. J. Thomas, an English physicist, measured thedeflection of cathode-ray particles in magnetic and electrical fields. As aresult he found the ratio of the charge, e, to the mass, m, of the cathode-rayparticles. He found em identical to those particles irrespective of the metalthe electrodes were ...
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