(adsbygoogle = window.adsbygoogle || []).push({}); Problem said:A conductor is made in the form of a hollow cylinder with inner and outer radii a and b, respectively. It carries a current I, uniformly distributed over its cross section.I understand that it needs to relate to the following equation but that is it. [tex]B=\frac{\mu_{0} I}{2\Pi r}[/tex] Question said:Derive an expression for the magnitude of the magnetic field in the region a < r < b.

I am unsure how to derive an answer for this, I am drawing a blank on solving this. Can anyone give me any helpful hints?

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# Magnitude of Magnetic Field

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