fREEmASTER
Jan6-04, 01:25 PM
What we be the required power supply and materials to build an electromagnet equal in strength to an NdFeB Disc, 7/8" dia X 1/8" thick? These are really tough little magnets. I'm wondering what it would take to make an electromagnet strong enough to repulse one of these (overcoming the attaction of the magnet to the electromagnet's iron core).