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What is a lifting magnet?
A lifting magnet is an electromagnet that is meant to hold or move material that comes in contact with the magnet. This is the opposite of a traction magnet.
How come you can lift a paper clip with a magnet without touching it?
magnet attracts iron. paper clip made of iron magnet atrracts paper clip...
What does a circuit diagram for a scrap heap magnet looks like?
The cicuit at first is all conected when it is turned on then the person driving the machine will turn the engine off and the circuit will disconnect causeing the magnet not to keep hold of the metal.
What is one way that a magnet's domain could become unaligned?
heat
Why does a magnet loses its magnetism when it is strongly heated or hammered?
A magnet is an alignment of particles in a solid. You can imagine a magnet as a bunch of tiny magnets that are all pointing in the same direction. When they point in the same direction, the little parts add up, and the magnet works like you'd expect. When you heat or hammer a magnet, the little magnetic parts can get jostled and unaligned. When that alignment is disturbed, they no longer point in the same direction and may even cancel other magnetic parts out, weakening and eventualy destroying the magnetism.
