Permeability of free space: Difference between revisions
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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
- <m>c</m> is the speed of light and
- <m>\epsilon_0</m> 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