Respuesta :
Superconducting materials don't generate anything.
But since their electrical resistance is zero, it's possible
to push a huge current through them without loss, and it's
the huge current that sets up a strong magnetic field around
the conductor.
But since their electrical resistance is zero, it's possible
to push a huge current through them without loss, and it's
the huge current that sets up a strong magnetic field around
the conductor.