An infinite length line carries current I in the +az directionon the z-axis, and this is surrounded by an infinite lengthcylindrical shell (centered about the z-axis) of radius acarrying the return current I in the -az direction as asurface current. Find expressions for the magnetic fieldintensity everywhere. If the current is 1.0 A and the radiusa is 2.0 cm, plot the magnitude of H versus radialdistance from the z-axis from 0.1 cm to 4 cm.

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Answered: An infinite length line carries current…

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