In Maglev, superconducting magnets suspend a train car above a U-shaped concrete guideway. Like ordinary magnets, these magnets repel one another when matching poles face each other. ... Here, both magnetic attraction and repulsion are used to move the train car along the guideway.

How does a levitating magnet work?

The basic idea is to make a magnet float by holding it up with the repelling force from another magnet. Magnets can repel each other with enough force. Having enough force to levitate it isn't the problem. ... The floating magnet tends to rotate around, flipping itself to attract to the other magnet.

What are the disadvantages of magnetic levitation?

There are several disadvantages to maglev trains: - Maglev guide paths are more costly than conventional steel railway tracks. Because the magnetic coils and material used in this setup are very costly. - Maglev trains require an all-new set up right from the scratch.