A metal ring kept (supported by a card I board) on the top …

Physics Electromagnetic Induction General MCQ (Single Correct)

A metal ring kept (supported by a card I board) on the top of a fixed solenoid carry a current I as shown in figure. The centre of the ring coincides with the axis of the solenoid. If the current in the solenoid is switched off, then

Magnetic flux linked with the mental ring increases. and

Current induced in the metal ring in clockwise direction. are correct.

Metal ring will not remain on the cardboard.

Both

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When the current in the solenoid is switch off magnetic flux linked with the solenoid and hence with metal ring decrease current induced in the metal ring is clockwise i.e. in the same direction as the solenoid current. So they will attract each other therefore the metal ring will remain on the cardboard.

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