ElectroMagnetic InductionHard
Question
In the figure shown, the magnet is pushed towards the fixed ring along the axis of the ring and it passes through the ring.
Options
A.when magnet goes towards the ring the face B becomes south pole and the face A becomes north pole
B.when magnet goes away from the ring the face B becomes north pole and the face A becomes south pole
C.when magnet goes away from the ring the face A becomes north pole and the face B becomes south pole
D.the face A will always be a north pole.
Solution
When the magnetic goes away from the ring the flux in the ring decreases hence the induced current will be such that it opposes the decreasing flux in it hence ring will behave like a magnet having face A as north pole and face B as south pole.
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