Magnetomotive force (MMF) or magnetomotance (SI Unit: Ampere) is any physical driving (motive) force that produces magnetic flux. In this context, the expression "driving force" is used in a general sense of "work potential", and is analogous, but distinct from force measured in newtons. Magnetomotive force is so named because it plays a role in magnetic circuits analogous to that of electromotive force (voltage) in electric circuits.
Read more about Magnetomotive Force: SI Versus CGS Units, Equations
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“The difference between a photograph and even the most realistic painting—say, one of Courbet’s landscapes—is that in the latter there has been selection, emphasis and some discreet distortion. The painter’s deep instinctive feeling for mass and force has rearranged everything.”
—Gerald Branan (1894–1987)