Magnetomotive Force

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What Does Magnetomotive Force (MMF) Mean?

Magnetomotive force (MMF) is a component or part of the equation of magnetic flux in magnetic circuits. As an analogy to electromotive force, MMF “drives” magnetic flux through a magnetic circuit.

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Magnetomotive force is also known as magnetic potential.

Techopedia Explains Magnetomotive Force (MMF)

The term magnetomotive force was designed to talk about the use of magnetic flux in magnetic circuits. Visuals and equations feature MMF, typically measured in “ampere-turns” which consist of a single amp conveyed in a single-turn loop in a vacuum. Scientists may also use other nomenclature such as a “gilbert” (G) to observe MMF.

As a component of magnetic circuit analysis, MMF may be used wherever magnetic circuit technologies are designed, such as in sound technology.

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Margaret Rouse
Technology Expert
Margaret Rouse
Technology Expert

Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.