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n. Abbr. mmf
The work that would be required to carry a hypothetical isolated magnetic pole of unit strength completely around a magnetic circuit.
(General Physics) the agency producing a magnetic flux, considered analogous to the electromotive force in an electric circuit; equal to the circular integral of the magnetic field strength. Symbol: F
mag•ne′to•mo′tive force′(mægˈni təˈmoʊ tɪv, -ˌni-)
a scalar quantity that is a measure of the sources of magnetic flux in a magnetic circuit.