Difference between revisions of "Oersted (unit)"

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The '''oersted''' (abbreviated as Oe) is  the unit of magnetic-field strength |'''H'''| in the cgs (centimetre-gram-second) system of physical units.  
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The '''oersted''' (abbreviated as Oe) is  the unit of magnetic-field strength |'''H'''| in the [[Gaussian units|Gaussian]] system of physical units. Gaussian units are cgs (centimeter-gram-second) units.  
  
 
The unit is named after [[Hans Christian Oersted]]. It is defined as the strength of a [[magnetic field]]  in vacuum:  A unit magnetic pole in a field of one Oe experiences a mechanical force of one [[dyne]] ( = 10<sup>&minus;5</sup> newton) in the direction of the field. Note here that in the cgs system a unit magnetic pole  repels a like pole at a distance of one centimetre with a force of one dyne. One oersted equals 1000/4π A/m &nbsp; [ampere per meter, the SI unit for |'''H'''| ].
 
The unit is named after [[Hans Christian Oersted]]. It is defined as the strength of a [[magnetic field]]  in vacuum:  A unit magnetic pole in a field of one Oe experiences a mechanical force of one [[dyne]] ( = 10<sup>&minus;5</sup> newton) in the direction of the field. Note here that in the cgs system a unit magnetic pole  repels a like pole at a distance of one centimetre with a force of one dyne. One oersted equals 1000/4π A/m &nbsp; [ampere per meter, the SI unit for |'''H'''| ].
  
Before 1932 the oersted was known as the gauss, a name sometimes still applied, though now more properly used for the cgs unit of  strength of [[magnetic induction]] |'''B'''|.
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Before 1932 the oersted was known as the gauss, a name sometimes still applied, though now more properly used for the Gaussian unit of  strength of [[magnetic induction]] |'''B'''|.

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The oersted (abbreviated as Oe) is the unit of magnetic-field strength |H| in the Gaussian system of physical units. Gaussian units are cgs (centimeter-gram-second) units.

The unit is named after Hans Christian Oersted. It is defined as the strength of a magnetic field in vacuum: A unit magnetic pole in a field of one Oe experiences a mechanical force of one dyne ( = 10−5 newton) in the direction of the field. Note here that in the cgs system a unit magnetic pole repels a like pole at a distance of one centimetre with a force of one dyne. One oersted equals 1000/4π A/m   [ampere per meter, the SI unit for |H| ].

Before 1932 the oersted was known as the gauss, a name sometimes still applied, though now more properly used for the Gaussian unit of strength of magnetic induction |B|.