Permeability of free space
The permeability of free space, μ0, is a physical constant used often in electromagnetism. It is defined to have the exact value of 4π x 10-7 N/A2 (newtons per ampere squared). 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:
- is the Magnetic force,
- and are two currents, and
- wires carrying the currents. is the separation between the
Visit Hyperphysics for more information on this constant.
For Further Reading
For further information please see the related pages below:
- Hyperphysics. (August 28, 2015). Electric field [Online], Available: http://hyperphysics.phy-astr.gsu.edu/hbase/electric/elefie.html
- Jackson, John David (1998). Classical Electrodynamics (3rd ed.). New York: Wiley. p. 213