Steel is a magnetic material. Not magnetic ... If you bring a north pole and a south pole together, they will attract. Earth's core contains liquid iron which moves around. Iron is magnetic ...

But some metals are magnetic and some are not. The most common magnetic metal is iron. You don't see too many objects made of pure iron but you do see lots of different things made of steel, which has ...

The device sure looks like an electromagnet made with magnet wire and a steel core. But when he shows ... The coil is fed with AC. The magnetic field from the coil induces an opposite field ...