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two identical circular loops of metal wire are lying on a table without touching each other.loop A carries a current which inc with time.then loop B is repelled by loop A,why?

two identical circular loops of metal wire are lying on a table without touching each other.loop A carries a current which inc with time.then loop B is repelled by loop A,why?

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1 Answers

SAGAR SINGH - IIT DELHI
879 Points
11 years ago

Dear student,

This is due to lenz's law

  • As the magnet approaches the loop, the applied B field in the centre increases. This is a change.

 

  • An Induced Field is created which attempts to negate the applied field - ie to keep the total field at zero - its original value.

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