The electric current flowing in a wire in the direction from B to A is decreasing. Find out the direction of the induced current in the metallic loop kept above the wire as shown.
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The direction of induced current is so as to oppose the change in magnetic flux through the wire.
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Answer:
According to Lenz's law, the direction of induced current is always produced in such a way that it opposes the change in magnetic flux that causes the induced emf.
The direction of magnetic field due to current carrying wire is perpendicular to the plane of paper in downward direction.
The direction of current induced is such that it opposes the decrease of magnetic field.
So, the magnetic field induced due to current carrying wire is downward and the direction of current in the loop is clockwise according to the Lenz's law.
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