The gauss, abbreviated as G or Gs, is the cgs unit of measurement of magnetic flux density (or "magnetic induction") (B). It is named after German mathematician and physicist Carl Friedrich Gauss. One gauss is defined as one maxwell per square centimeter. The cgs system has been superseded by the International System of Units (SI), which uses the tesla (symbol T) as the unit of magnetic flux density. One gauss equals 1×10−4 tesla (100 μT), so 1 tesla = 10,000 gauss.
As with all units whose names are derived from a person's name, the first letter of its symbol is uppercase ("G"), but when the unit is spelled out, it should be written in lowercase ("gauss"), unless it begins a sentence.
According to the system of Gaussian units (cgs), the gauss is the unit of magnetic flux density B and the equivalent of Mx/cm2, while the oersted is the unit of magnetizing field H. One tesla (T) is equal to 104 gauss, and one ampere (A) per meter is equal to 4π × 10−3 oersted.
The units for magnetic flux Φ, which is the integral of magnetic field over an area, are the weber (Wb) in the SI and the maxwell (Mx) in the cgs system. The conversion factor is 108, since flux is the integral of field over an area, area having the units of the square of distance, thus 104 (magnetic field conversion factor) times the square of 102 (linear distance conversion factor, i.e., centimetres per meter). 108 = 104 × (102)2.
Sir Charles Frederick Goodeve (21 February 1904 – 7 April 1980) was a Canadian chemist and pioneer in operations research for the British. During World War II, he was instrumental in developing the "hedgehog" antisubmarine warfare weapon and the degaussing method for protecting ships from naval mines.Maxwell (unit)
The maxwell (symbol: Mx) is the CGS (centimetre-gram-second) unit of magnetic flux (Φ).