Biology, 02.09.2021 20:00, shealene7

A cathode ray tube is made of glass with a small amount of some kind of gas in it. It has metal electrodes at each end to pick up an electric current. The electrodes are named "positive” and "negative." What are one of the main uses of this device ?

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A cathode ray tube is made of glass with a small amount of some kind of gas in it. It has metal elec...

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