Physics, 14.07.2019 16:30, anonymousanon

Along hollow cylindrical conductor (inner radius = 2.0 mm, outer radius = 4.0 mm) carries a current of 12 a distributed uniformly across its cross section. a long wire which is coaxial with the cylinder carries an equal current in the same direction. what is the magnitude of the magnetic field 3.0 mm from the axis?

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Along hollow cylindrical conductor (inner radius = 2.0 mm, outer radius = 4.0 mm) carries a current...