The figure below shows a long conducting coaxial cable and gives its radii ( R 1 =0.12m,
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The figure below shows a long conducting coaxial cable and gives its radii (R1=0.12m, R2=0.62m, R3=1.11m). The outer cable has a uniform current density of J=113A/m2, and the inner cable carries a current I=19.8A flowing in opposite direction. Assume that the currents in each wire is uniformly distributed over its cross section. Determine the magnitude of the magnetic field in terms of U0 at a distance r=0.93m from the center of the cable. Express your answer using one decimal place.
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