Magnetic diffusivity
The magnetic diffusivity is a parameter in plasma physics which appears in the magnetic Reynolds number. It has SI units of m²/s and is defined as: , while in Gaussian units it can be defined as . In the above, is the permeability of free space, is the speed of light, and is the electrical conductivity of the material in question. In case of a plasma, this is the conductivity due to Coulomb or neutral collisions: , where
* is the electron density.
* is the electron charge.
* is the electron mass.
* is the collision frequency.
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Magnetic diffusivity
The magnetic diffusivity is a parameter in plasma physics which appears in the magnetic Reynolds number. It has SI units of m²/s and is defined as: , while in Gaussian units it can be defined as . In the above, is the permeability of free space, is the speed of light, and is the electrical conductivity of the material in question. In case of a plasma, this is the conductivity due to Coulomb or neutral collisions: , where
* is the electron density.
* is the electron charge.
* is the electron mass.
* is the collision frequency.
has abstract
A difusividade magnética é um ......
* é a frequência de colisão.
@pt
La diffusivité magnétique ne c ...... Reynolds magnétique est donc .
@fr
La difusivitat magnètica és un ......
* = freqüència de col·lisió.
@ca
The magnetic diffusivity is a ......
* is the collision frequency.
@en
Współczynnik η (czasami używan ...... czna próżni,σ – konduktywność.
@pl
磁擴散率(magnetic diffusivity)是以等离 ......
* 為電子密度
* 為電荷
* 為
* 為碰撞頻率
@zh
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comment
A difusividade magnética é um ......
* é a frequência de colisão.
@pt
La diffusivité magnétique ne c ...... ique suit la loi suivante :
*
@fr
La difusivitat magnètica és un ......
* = freqüència de col·lisió.
@ca
The magnetic diffusivity is a ......
* is the collision frequency.
@en
Współczynnik η (czasami używan ...... czna próżni,σ – konduktywność.
@pl
磁擴散率(magnetic diffusivity)是以等离 ......
* 為電子密度
* 為電荷
* 為
* 為碰撞頻率
@zh
label
Diffusivité magnétique
@fr
Difusividade magnética
@pt
Difusivitat magnètica
@ca
Dyfuzyjność magnetyczna
@pl
Magnetic diffusivity
@en
磁擴散率
@zh