Category:Impedance of Free Space
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This category contains results about Impedance of Free Space.
Definitions specific to this category can be found in Definitions/Impedance of Free Space.
Impedance of free space is a physical constant relating the magnitudes of the electric and magnetic fields of electromagnetic radiation travelling through a vacuum.
It is defined as:
- the quotient of the magnitudes of the electric field and magnetic fields of electromagnetic radiation travelling through a vacuum:
- $\dfrac {\size {\mathbf E} } {\size {\mathbf H} }$
- the vacuum permeability multiplied by the speed of light:
- $\mu_0 c$
- the square root of the quotient of the vacuum permeability by the vacuum permittivity:
- $\sqrt {\dfrac {\mu_0} {\varepsilon_0} }$
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