The plane of a flat, circular loop of wire is horizontal. An external magnetic f
ID: 2269176 • Letter: T
Question
The plane of a flat, circular loop of wire is horizontal. An external magnetic field is directed perpendicular to the plane of the loop. The magnitude of the external magnetic field is increasing with time. Because of this increasing magnetic field, an induced current is flowing clockwise in the loop, as viewed from above. What is the direction of the magnetic field, assuming the situation is drawn on a sheet of paper?
O Left O Right O Into the page O Out of the page O Up the page O Down the page O Clockwise CounterclockwiseExplanation / Answer
According to lenz's law, the induced current is such that it always opposes the direction of magnetic field. As the induced current flows in clockwise direction, the direction of magnetic field is out the plane of paper.
out of the page is correct option. fourth option is correct.
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