Question

why we should keep magnets away from tv,computer etc

Answer 1

All hard drives have a very strong magnet inside. to avoid them interfering with CRT tv sets. ... Many of us have heard that magnets can wipe our hard drives, wreak havoc on our computer monitors, or that magnets distort the flow of electrons through cables.

Answer 2

as we know that electrical devices are works on electricity and we also know that the flow of electricity causes magnetic effect means if we place a magnet around any electrical appliances it will attract each other or can affect the flow of current hence it can damage the electrical appliances.