Magnetic path length (MPL) is the effective length of a closed
magnetic loop inside a
magnetic core made of
ferromagnetic material which may be also gapped.
MPL is relevant in
transformer
A transformer is a passive component that transfers electrical energy from one electrical circuit to another circuit, or multiple circuits. A varying current in any coil of the transformer produces a varying magnetic flux in the transformer' ...
and
inductor
An inductor, also called a coil, choke, or reactor, is a passive two-terminal electrical component that stores energy in a magnetic field when electric current flows through it. An inductor typically consists of an insulated wire wound into a c ...
design and more generally in all kinds of magnetic reactors, such as in
magnetic amplifiers and
electromagnet
An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. Electromagnets usually consist of wire wound into a coil. A current through the wire creates a magnetic field which is concentrated in ...
s.
See also
*
Mean Length Turn
References
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Magnetism