Cathode ray tube, drawing

Cathode ray tube, drawing

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Credit: JACOPIN/SCIENCE PHOTO LIBRARY

Caption: CATHODE RAY TUBE, DRAWING Cathode ray tube, highlighting electrons. The cathode tube makes it possible to demonstrate the existence of electrons. A tube is filled with low-pressure gas. A cell in the tube is connected to a cathode, creating a cathode ray which is directed between two positively-charged metal plates. The ray is deflected. Conclusion, the ray is negatively charged. Thomson deduced from this that the ray was made up of negatively-charged particles, known as electrons.

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Keywords: artwork, beam, cathode, cathode ray tube, electricity, electron, health, light, lighted, medicine, physics, plain background, ray, science, sciences, tube

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