Tesla (unit)
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Tesla_(unit)".

The tesla (symbol T) is the SI derived unit of magnetic field (specifically magnetic flux density). The tesla is equal to one weber per square metre and was defined in 1960[1] in honor of inventor, scientist and electrical engineer Nikola Tesla.

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Definition

This SI unit is named after Nikola Tesla. As with every SI unit whose name is derived from the proper name of a person, the first letter of its symbol is uppercase (T). When an SI unit is spelled out in English, it should always begin with a lowercase letter (tesla), except where any word would be capitalized, such as at the beginning of a sentence or in capitalized material such as a title. Note that "degree Celsius" conforms to this rule because the "d" is lowercase.
— Based on The International System of Units, section 5.2.
\mathrm{1\, T = 1\,\frac{V\cdot s}{m^2} = 1\,\frac{N}{A\cdot m} = 1\,\frac{Wb}{m^2} = 1\,\frac{kg}{A\cdot s^2} = 1\,\frac{kg}{C\cdot s}}

Units used:

Conversions

1 tesla is equivalent to:

  • 10,000 (or 104) gauss (G), used in CGS system. Thus, 10 G = 1 mT (1 millitesla)
  • 1,000,000,000 (or 109) gammas (γ), used in geophysics. Thus, 1 γ = 1 nT (nanotesla)

For the relation to the units of the magnetizing field (Amperes/Meter or Oersted) see the article on permeability.

Examples

Main article: Orders of magnitude (magnetic flux density)

References

  1. ^ sizes.com - details of SI units
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