Magnetic permeance

Description

Magnetic reluctance, or magnetic resistance, is a concept used in the analysis of magnetic circuits. It is analogous to resistance in an electrical circuit, but rather than dissipating electric energy it stores magnetic energy. In likeness to the way an electric field causes an electric current to follow the path of least resistance, a magnetic field causes magnetic flux to follow the path of least magnetic reluctance. The inverse of reluctance is called permeance. Its SI derived unit is the henry (the same as the unit of inductance, although the two concepts are distinct).