Question

why TV screens soon become so dusty?

Answer 1

the back side of the TV screen is bombarded with negatively charged electrons which charges the back of the screen negatively.
suggest particles are attracted to TV screen go to the attraction between the static charges developed on the TV screen and included the charges on the dust particles........
hope it helps u........

Answer 2

hello friend,

The backside of the TV screen bombarded with negatively charged electrons which charges the back of the screen negatively by which the dust is attracted towards the negatively charged electrons.

hope it helps ☺☺