for a reluctant element, quotient of the magnetic flux Φ by the magnetic tension Vm Note 1 to entry: The permeance is the reciprocal of the reluctance. Note 2 to entry: The coherent SI unit of permeance is henry, H. Note 3 to entry: In an electric equivalent circuit, the permeances are represented by conductances, magnetic fluxes by electric currents and magnetic tensions by voltages.
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