Electrodynamic suspension
![Jumping rings lift when an AC current energises a coil and the electrodynamic forces pushes the rings upwards against gravity](/Images/godic/202501/24/Induction_levitation_cropped5607.jpg")
![The field from a linear motor generates currents in an aluminum or copper sheet that creates lift forces as well as propulsion.](/Images/godic/202501/24/Linear_motor_field5607.gif")
![3D-image of an axially magnetized ring magnet surrounded by a copper cylinder. The metal ring around the outside spins and the currents generated when it is off-center relative to the magnet push it back into alignment.](/Images/godic/202501/24/Copper_Cylinder_Cut_through5607.png")
![The JR Central SCMaglev train uses null flux superconductor magnet-based electrodynamic levitation.](/Images/godic/202501/24/JR-Maglev-MLX01-25608.jpg")
Electrodynamic suspension (EDS) is a form of magnetic levitation in which there are conductors which are exposed to time-varying magnetic fields. This induces eddy currents in the conductors that creates a repulsive magnetic field which holds the two objects apart.