Question

the intensity of electron alarm is controlled by_______in CRT monitors​

Answer 1

Answer:

The cathode-ray tube (CRT) is a vacuum tube containing one or more electron guns, the beams of which are manipulated to display images on a phosphorescent screen.[2] The images may represent electrical waveforms (oscilloscope), pictures (television set, computer monitor), radar targets, or other phenomena. CRTs have also been used as memory devices, in which case the screen is not intended to be visible to an observer.