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Oersted (abbreviated as Oe) is the unit of magnetizing field
Magnetic field

A magnetism field is a vector field which can exert a magnetic force on moving electric charges and on magnetic dipoles . When placed in a magnetic field, magnetic dipoles tend to align their axes parallel to the magnetic field....
 (also known as magnetic field strength or intensity) in the CGS system of units. It is defined as 1000/4p (˜79.5774715) ampere
Ampere

The ampere is the International System of Units unit of electric current. The ampere, in practice often shortened to amp, is an SI base unit, and is named after Andr?-Marie Amp?re, one of the main discoverers of electromagnetism....
s per meter of flux path, in terms of SI units. The oersted is closely related to the gauss
Gauss (unit)

The gauss, abbreviated as G, is the cgs units of measurement of a magnetic field B , named after the German mathematician and physicist Carl Friedrich Gauss....
, the CGS unit of magnetic induction or magnetic field
Magnetic field

A magnetism field is a vector field which can exert a magnetic force on moving electric charges and on magnetic dipoles . When placed in a magnetic field, magnetic dipoles tend to align their axes parallel to the magnetic field....
. In a vacuum, 1 G = 1 Oe, whereas in a medium having permeability
Permeability (electromagnetism)

In electromagnetism, permeability is the degree of magnetization of a material that responds linearly to an applied magnetic field. Magnetic permeability is typically represented by the Greek letter Mu ....
 , their relation is G = Oe.






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Oersted (abbreviated as Oe) is the unit of magnetizing field
Magnetic field

A magnetism field is a vector field which can exert a magnetic force on moving electric charges and on magnetic dipoles . When placed in a magnetic field, magnetic dipoles tend to align their axes parallel to the magnetic field....
 (also known as magnetic field strength or intensity) in the CGS system of units. It is defined as 1000/4p (˜79.5774715) ampere
Ampere

The ampere is the International System of Units unit of electric current. The ampere, in practice often shortened to amp, is an SI base unit, and is named after Andr?-Marie Amp?re, one of the main discoverers of electromagnetism....
s per meter of flux path, in terms of SI units. The oersted is closely related to the gauss
Gauss (unit)

The gauss, abbreviated as G, is the cgs units of measurement of a magnetic field B , named after the German mathematician and physicist Carl Friedrich Gauss....
, the CGS unit of magnetic induction or magnetic field
Magnetic field

A magnetism field is a vector field which can exert a magnetic force on moving electric charges and on magnetic dipoles . When placed in a magnetic field, magnetic dipoles tend to align their axes parallel to the magnetic field....
. In a vacuum, 1 G = 1 Oe, whereas in a medium having permeability
Permeability (electromagnetism)

In electromagnetism, permeability is the degree of magnetization of a material that responds linearly to an applied magnetic field. Magnetic permeability is typically represented by the Greek letter Mu ....
 , their relation is G = Oe. One oersted also equals a magnetomotive force
Magnetomotive force

Magnetomotive force is any physical cause that produces magnetic flux, i.e. lines of forces emitted from a magnetic material. If a magnetic field passes through a cross sectional area A , it produces a flux given by the equation MMF?A = flux ....
 (mmf) of 1 gilbert
Magnetomotive force

Magnetomotive force is any physical cause that produces magnetic flux, i.e. lines of forces emitted from a magnetic material. If a magnetic field passes through a cross sectional area A , it produces a flux given by the equation MMF?A = flux ....
 per centimeter of flux
Flux

In the various subfields of physics, there exist two common usages of the term flux, both with rigorous mathematical frameworks.*In the study of transport phenomena , flux is defined as the amount that flows through a unit area per unit time....
 path.

The unit was established by the IEC
International Electrotechnical Commission

The International Electrotechnical Commission is a Non-profit organization, non-governmental international standards organization that prepares and publishes International Standards for all electrical, electronic and related technologies ? collectively known as "electrotechnology"....
 in 1930 in honour of Hans Christian Ørsted
Hans Christian Ørsted

Hans Christian ?rsted was a Denmark physicist and chemist. He shaped Kantianism and advances in science throughout the late nineteenth century....
, who discovered electromagnetism in 1820. From the Standard Handbook of Electrical Engineers; "It is that magnetic vector quantity at a point in a magnetic field which measures the ability of electric currents or magnetized bodies to produce magnetic induction
Magnetic induction

Magnetic induction may refer to one of the following:* Electromagnetic induction* Magnetic field B is sometimes called magnetic induction...
 at the given point."



  • In SI
    Si

    Si, si, or SI may refer to :...
     units, 1 gilbert = 10/4p ampere-turn
    Ampere-turn

    The ampere-turn is the International System of Units unit of magnetomotive force, represented by a direct current of one ampere flowing in a single-turn loop in a vacuum....
    s = about 0.7958 ampere-turn.
  • The stored energy in a magnet, called magnet performance, or "magnetic energy product", is typically measured in units of megagauss-oersteds (MGOe). Units of MGOe are equivalent to megajoules per cubic meter.


See also

  • Centimetre gram second system of units
    Centimetre gram second system of units

    The centimetre-gram-second system is a metric system of units of measurement based on centimetre, gram, and second. All of CGS mechanicss are unambiguously derived from these three base units, but there are several alternative variants of extending the CGS system in electromagnetism....