020 - Magnetic Permeability
In this video Paul Andersen explains how the magnetic permeability is the ability of a material to form internal magnetic fields. The magnetic permeability of free space is a constant and is much lower than the magnetic permeability of magnetics.
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Music Attribution
Title: String Theory
Artist: Herman Jolly
http://sunsetvalley.bandcamp.com/track/string-theory
All of the images are licensed under creative commons and public domain licensing:
"File:Magnet0873.png." Wikipedia, the Free Encyclopedia. Accessed May 18, 2014. http://en.wikipedia.org/wiki/File:Magnet0873.png.
USA, Windell Oskay from Sunnyvale, CA. Bifilar Wound Toroidal Transformer., March 28, 2007. bifilar toroid. http://commons.wikimedia.org/wiki/File:Bifilar_wound_toroidal_transformer.jpg.
