Magnetic levitation (maglev) trains use electricity to generate magnetic fields. how are these magnetic fields related to the forward motion of the train?

Magnetic fields through the attractive and repulsive forces of magnetism pull the train forward.

Explanation:

A magnetic levitation train or Maglev is a train-like vehicle that transits a line high above the ground and is propelled by the attractive and repulsive forces of magnetism through the use of superconductors. Due to the lack of contact between the vehicle and the line, the only friction that exists is between the appliance and the air. As a result, magnetic levitation trains can achieve enormous speeds, with relative low energy consumption and low noise, there are projects for maglev lines that would reach 650 km / h and also projects like the Maglev 2000 which, using depressurised tunnels throughout the would reach the mark of 3200 km / h.

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