Question

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 "positiveā€ and "negative."

What are one of the main uses of this device ?

to speed up the flow of current flowing through a wire
to examine a beam of charged particles
to magnetize different atoms within a space
to change the strength of a proton within an atom

Answers

GPT 3.5
One of the main uses of a cathode ray tube is to examine a beam of charged particles.

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