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  • What is the magnetomotive force exactly? - Physics Stack Exchange
    What is the magnetomotive force defined in terms of the variables of and derived from the Maxwell's equations? The emphasis is on the mathematical derivation The answer by @NicolasSchmid is wrong
  • Basic question about magnetic circuits - Physics Stack Exchange
    I am just learning about magnetic circuits and I'm trying to solve the simplest possible circuit you can have, but I seem to be getting a nonsense unphysical answer and I'm not sure why Say we hav
  • Magnetomotive force in a specific case (the 2 in the nominator)
    Magnetomotive force in a specific case (the 2 in the nominator) Ask Question Asked 6 years, 8 months ago Modified 6 years, 8 months ago
  • Pulling force of magnetic field on a magnetic object
    Under this assumption, practically all magnetomotive force, $F_m$, is applied to the gap, so we can express magnetic field as $B=\frac {F_m\mu_0} g$ As the gap shrinks, its reluctance decreases and becomes comparable and, at some point, even lower than the reluctance of the rest of the magnetic circuit
  • electromagnetism - Reluctance and inductance are opposites, but both . . .
    Reluctance is a ratio between magnetomotive force and magnetic flux, so strictly speaking, it cannot store anything Although, in some discussions such language (i e , "reluctance stores magnetic energy") can be used - it should not be taken literally
  • Conservative magnetic field - Physics Stack Exchange
    @hyportnex If you follow, for example Griffiths, all magnets are essentially electromagnets, and have boundary surface current densities K, and if non-uniformly magnetized also have interior volume current densities J Thus the requirement that J=0 inside a magnet entails that the magnet is uniformly magnetized The alternative Gilbert model uses non-physical magnetic monopoles
  • Flux linkage of 2 coils in series - Physics Stack Exchange
    I know that magnetic circuit resembles electric circuits Yes, but the analogy works between certain specific quantities, and you are considering the wrong ones: the electromotive force does not correspond to the flux linkage, but to the magnetomotive force For lumped magnetic and electric circuits, the main correspondences are as follows: Magnetomotive force $\mathcal {M}$ $\qquad
  • Why doesnt magnetomotive force have units of force?
    Why does it have units of Ampere-turns and not Newtons? Is it a current, or turns mean metres?
  • Terminology for line integral of magnetic field
    "Of course, the term for the line integral of the electric field (electromotive force) is somewhat of a historical oddity" and misleading - electromotive force isn't always given by line integral of the electric field "Contour integral of electric magnetic field" is accurate and comprehensible I do not think there is commonly used shorter expression
  • Is magnetic force non-conservative? - Physics Stack Exchange
    If magnetic field is conservative, then why not the magnetic force? My professor thinks it is non conservative but he couldn't explain to me why?





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