The static units in that system were related to the equivalent electromagnetic units by a factor of the speed of light.
2.
SI electromagnetic units are called " rationalized ", because Maxwell's equations have no explicit factors of 4? in the formulae.
3.
The Gaussian unit system is just one of several electromagnetic unit systems within CGS . Others include " electromagnetic units ", and Lorentz Heaviside units.
4.
The Gaussian unit system is just one of several electromagnetic unit systems within CGS . Others include " electromagnetic units ", and Lorentz Heaviside units.
5.
A practical unit to be used by electricians and engineers, the ampere, was then defined as equal to one tenth of the electromagnetic unit of current.
6.
This is because there is no one-to-one correspondence between electromagnetic units in SI and those in CGS, as is the case for mechanical units.
7.
This impasse was resolved by Giovanni Giorgi, who in 1901 proved that a coherent system that incorporated electromagnetic units had to have an electromagnetic unit as a fourth base unit.
8.
This impasse was resolved by Giovanni Giorgi, who in 1901 proved that a coherent system that incorporated electromagnetic units had to have an electromagnetic unit as a fourth base unit.
9.
Furthermore, within CGS, there are several plausible choices of electromagnetic units, leading to different unit " sub-systems ", including Gaussian units, " ESU ", " EMU ", and Heaviside Lorentz.
10.
CGS-emu ( or " electromagnetic cgs " ) units are one of several systems of electromagnetic units within the centimetre gram second system of units; others include CGS-esu, Gaussian units, and Lorentz Heaviside units.
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