Permeance

Permeance (magnetic conductivity) of a magnetic circuit - a measure characterizing the degree to which a material allows magnetic flux to flow. It is expressed as the ratio of the total magnetic flux to the magnetomotive force (expressed in ampere-turns) in the magnetic circuit. Permeance is the inverse of reluctance. It is directly proportional to the cross-section and inversely proportional to the circumference length. Permeance is a concept analogous to conductance. The SI unit of permeance is henry (same as inductance, but both concepts are different).

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