Noun
the electric coil around a field magnet that produces the magneto motive force to set up the flux in an electric machine
Source: WordNetFlexible plate is used in electric motor and generator armatures, field coil insulation, and magnet and commutator core insulation. Source: Internet
A second stationary field coil, perpendicular to the voltage coils, carries a current proportional to current in one phase of the circuit. Source: Internet
The change of momentum of the protons would thrust against the magnetic field, and thus against the field coil. Source: Internet