• A small current element at the origin has a length of 20 2.0 mm and carries a current of 2.0 A in the +z direction. Find the magnitude of the magnetic field due to this current element and in- dicate its direction on a diagram at (a) x = 2.0 m, y = 4.0 m,z = 0 and (b) x = 2.0 m, y = 0, z = 4.0 m. %3! %3D %3D %3D
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