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.

MPI exploits this behaviour by creating a magnetic field gradient across the imaging space with a field-free line (FFL) in the centre ... to generate the FFL and high-power electromagnet shift coils, ...

By successively activating these coils, the rotor will follow the magnetic field being generated and ... giving a total of five control lines. This makes it a four-phase design, with four ...

These papers detail the practical advantages of the planar coil stellarator as well as the methods used to design the planar (i.e. flat) magnetic coils, allowing for a commercial maintenance scheme.

The needle of the compass follows the magnetic field lines. The N pole of the magnet ... The magnetic effect is enhanced when this wire is made into a coil. Describe the direction of the magnetic ...