Determine radius of the wire

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Reference no: EM13246921

A long wire is known to have a radius greater than 5.6 mm and to carry a current that is uniformly distributed over its cross section. The magnitude of the magnetic field due to that current is 0.57 mT at a point 4.0 mm from the axis of the wire, and 0.33 mT at a point 42 mm from the axis of the wire. What is the radius (in mm) of the wire?

Reference no: EM13246921

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