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  4. A bar magnet is allowed to fall vertically through a copper coil placed in a horizontal plane. The magnet falls with a net acceleration

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Q. A bar magnet is allowed to fall vertically through a copper coil placed in a horizontal plane. The magnet falls with a net accelerationPhysics Question Image

KCETKCET 2017Electromagnetic Induction

Solution:

When the magnet is allowed to fail vertically along the axis of loop with its north pole towards the coil. The upper face of the coil will become north pole in an attempt to oppose the approaching north pole of the magnet. Therefore. the acceleration in the magnet is less than $g$.