Magnetic Circuits and Permeability

New levels of understanding!  From the well-recommended text, “Electric Machinery”:

A magnetic circuit consists of a structure composed for the most part of high-permeability magnetic material. The presence of high-permeability material tends to cause magnetic flux to be confined to the paths defined by the structure, much as currents are confined to the conductors of an electric circuit.

So I can finally think of permeability in a clear way:  as an analogy for conductance, like copper conducts current, a high permeability allows for “conductance” of magnetic fields.  Way cool!

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