The wire is located in a region in which there is a uniform magnetic field in the y direction. You note that the induced EMF in the wire is zero. From this observation, you can conclude that

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Quizplus · Accepted Answer

If the induced EMF in the wire is zero, it means that the magnetic flux through the wire is constant. According to Faraday's Law of Electromagnetic Induction, a changing magnetic flux through a conductor is required to induce an electromotive force (EMF) in the conductor. Therefore, the wire must be at rest or moving parallel to the magnetic field for the induced EMF to be zero. Moving in the z or -z direction would cause a changing magnetic flux and induce an EMF. A velocity vector making an angle other than zero with the magnetic field would also cause a changing magnetic flux and induce an EMF. Therefore, options A, B, and D are incorrect. The correct option is C - the wire must be at rest or moving parallel to the magnetic field.

The Wire Is Located in a Region in Which There