Current in a wire

  • Thread starter chewwy
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  • #1
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Homework Statement


current flows in a wire of circular cross-section, made of a material of uniform conductivity s. show the current is distributed uniformly across the cross-section.


Homework Equations


This should follow easily from the maxwell equations and j=sE i assume...

The Attempt at a Solution


my mind is completely blank, even though this should be really easy.. argh. help.
 

Answers and Replies

  • #2
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Try Ampere's Law relating B to J inside the wire.
 

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