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• A small current element at the origin has a length of
2.0 mm and carries a current of 2.0 A in the +z direction. Find the
20
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.

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