A current of 15.9 A is carried by a long straight wire in the same direction as that of the Earth' magnetic field. If the magnitude of theEarth' magnetic field is 5 x 10^-5 T, what is the magnitude of the magnetic field a distance of 7.4 cm from the wire?

The correct answer is: 6.593e-5

Answer rating: 100% (QA)

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