A metallic ring is attached with the wall of a room. When the north pole of a magnet is brought near to it, the induced current in the ring as seen by the magnet will be

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First clockwise then anti clockwise

In clockwise direction

In anti clockwise direction

First anti clockwise then clockwise

answer is C.

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Detailed Solution

Given data:

North pole having magnet

Induced current will be

Concepts used: Magnetic field

Explanation:

According to Lenz's law, current is induced in a direction that opposes changes in the magnetic field. Therefore, when the north pole of the magnet approaches the ring, the magnetic field increases towards the ring. Therefore, the induced current should create a magnetic field in the opposite direction of the magnetic field through the magnet. Therefore, according to Fleming's right-hand rule, current flows counterclockwise.

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