(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Consider a circular ring of wire of radius a that resides in the x-y plane through the origin. The center of the ring coincides with the origin and you can regard the thickness of the wire to be infinitesimal.

a. Given that a current I flows in the ring, find an expression for the current density J.

2. Relevant equations

∫B(r).dl = μ∫J(r).da

3. The attempt at a solution

ok, I know J(r)=Io * δ(x)*δ(y)z

How do I get this in cylindrical coordinates (ρ,θ,z)?

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# Circular ring in xy-plane with current, find current density

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