Physics Practice Problems Lenz's Law Practice Problems Solution: A single circular loop of wire in the plane of the...

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Solution: A single circular loop of wire in the plane of the page is perpendicular to a uniform magnetic field ~B directed into the page, as shown. If the magnitude of the magnetic field is decreasing, then the induced current in the wire loop is 1. counterclockwise around the loop. 2. directed upward out of the paper. 3. zero. (No current is induced.) 4. clockwise around the loop. 5. directed downward into the paper.

Problem

A single circular loop of wire in the plane of the page is perpendicular to a uniform magnetic field ~B directed into the page, as shown. If the magnitude of the magnetic field is decreasing, then the induced current in the wire loop is

1. counterclockwise around the loop.

2. directed upward out of the paper.

3. zero. (No current is induced.)

4. clockwise around the loop.

5. directed downward into the paper.