Q56 / 60 · KVPY 2014 (SA) · Physics

A bar magnet falls with its north pole pointing down through the axis of a copper ring. When viewed from above, the currecnt in the ring will be

  • A
    Clockwise while the magnet is above the plane of the ring and counter clockwise while below the plane of the ring
  • B
    Counter clockwise throughout
  • Correct answer
    C
    Counter clockwise while the magnet is above the plane of the ring, and clockwise while below the plane of the ring
  • D
    Clockwise throughout.

Solution

Useing lenz's law upper face first become North pole then south pole

Hence, the correct answer is option: 'C'.

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