- #1
Logarythmic
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Homework Statement
Two of the MHD equations can be formulated as
[tex]\vec{E} + \vec{v} \times \vec{B} = \eta \vec{J}[/tex]
[tex]\nabla \times \vec{B} = \mu_0 \vec{J}[/tex]
where [itex]\eta[/tex] is the resistivity of the plasma.
a.) Derive an equation for the magnetic field at very high resistivity and describe the corresponding consequences for the behaviour of the magnetic field lines.
b.) Derive an equation for the magnetic field av very low resistivity and describe the corresponding consequences for the behaviour of the magnetic field lines.
Homework Equations
The set of Maxwell equations?
The Attempt at a Solution
I have no clue. This has been a problem for a week or so, and it's the only one I got left. The only thing I know is that when the resistivity is low, the field is frozen-in to the plasma.
Please help!