Magnetic diffusivity : significance?

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Magnetic diffusivity is a term that appears in the induction equation, when we deal with plasma fluids. It has units of meter squared per second.
I am unable to figure out what does the diffusion of plasma as a fluid implies.. It has something to do with magnetic field interacting with the plasma..

Someone please provide a detailed explanation..
 

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what does diffusion means..? how can i physically understand it.. with a plasma..?

someone please reply...
 
nyone... please give some answer... ! :cry:
 
thanx for replying.. but that didn't help much.. :confused:
 
people should seriously consider studying plasmas for a change... :-/
 

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