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What is Permeance?Permeability definitionPermeability is defined as a measure of the ease with which magnetic flux passes through a material or magnetic circuit.The Permeability formulaThe Magnetic Permeability is calculated by dividing the magnetic flux by the product of the number of ampere-turns and the magnetic path length to show its dependence on the magnetic flux and path.Analogy with conductanceThe Permeability in a magnetic circuit is similar to the conductivity in an electrical circuit

What is Permeance?Permeance is defined as a measure of the ease with which magnetic flux can be admitted through a material or magnetic circuit. Permeance is the reciprocal of reluctance. Permeance is directly proportional to the magnetic flux and is denoted by the letter P.From the above equation we can say that the quantity of magnetic flux for a number of ampere-turns is depended on permeance.In terms of magnetic permeability, permeance is given byWhere, = Permeability of free space (vacuum)