Permeability of free space: Difference between revisions
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Revision as of 18:22, 3 September 2015
The permeability of free space, μ0, is a physical constant used often in electromagnetism. It is taken to have the exact value of 4π x 10-7 N/A2 (newtons per ampere squared).[1] It is connected to the energy stored in a magnetic field, see Hyperphysics for specific equations.
It is related to the speed of light by the equation
where
is the speed of light and
is the permittivity of free space.
Visit Hyperphysics for more information on this constant.
References
- ↑ Hyperphysics. (August 28, 2015). Electric field [Online], Available: http://hyperphysics.phy-astr.gsu.edu/hbase/electric/elefie.html