The figures below show one or more metal wires sliding on fixed metal rails in a

Question

The figures below show one or more metal wires sliding on fixed metal rails in a magnetic field. In figure 1 the magnetic field direction is out of the page whereas is into the page for Figures 2 and 3, respectively. The unlabeled arrows represent the velocity of the wires. In the third arrangement, the dashed line is not a wire. It is drawn to emphasize that the magnetic field is zero above it. For which of these arrangements does the induced current flow counterclockwise?

For 1.

For 2 and 3.

For 3.

For neither one.

For 2.

Explanation / Answer

For 2

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