Magnetic separation allows iron and steel to be removed from piles of non-magnetic materials
Non-magnetic metals can be made temporarily magnetic if they are good conductors of electricity
A strong magnet nearby can make a temporary electric current flow through them.
A magnetic field exists wherever an electric current flows
What does it do ?
Magnetic separation is widely used in the mining industry, in the scrap metal business and in recycling. One way of recycling scrap is to feed it into a magnetic rotating drum. The magnetic materials are attracted to the drum and are removed from the flow of rubbish, which passes straight through, The collected metals can then be recycled.