A coil of wire, or solenoid, consists of a wire coiled up into a spiral shape. When an electric current flows, the shape of the magnetic field is very similar to the field of a bar magnet.

The coils are wound around an iron core. They are magnetically connected but not electrically connected. A primary voltage drives an alternating current through the primary coil. The primary coil ...

In a stellarator, the electric currents passing through the coils create a magnetic field ... plan to systematically assess all the relevant physics properties of the piecewise omnigenous magnetic ...