How does a cathode ray works?

Answer 1

A cathode ray tube is in the monitor. A hot filament at the rear end of the tube releases electrons. They are negatively charged particles. They are drawn toward a plate which has a positive charge. As they fly toward the plate, electro magnets turn on and off real fast and alter their paths. When they hit the screen, they land on a little dot of a particular color. You see a number of these dots lit up. They combine inside your eye to produce the picture. After the electron hits the screen, it falls down to the positively charged plate.