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\begin{figure}\centerline{ \psfig{file=problems/problem_00005.eps,height=2.5in} }\end{figure}

A cylindrical long straight wire of radius $R$ carries a current density of $\vec{\bf J}$ into the page as drawn. Find the magnetic field (magnitude and direction) at arbitrary points inside and outside the wire. Show all work and clearly label the law or rule used to find the answer.

Robert G. Brown 2003-02-09