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Question: Answered & Verified by Expert
A magnet of a magnetic moment M is in the form of a quadrant of a circle. If it is straightened, its new magnetic moment will be
PhysicsMagnetic Properties of MatterNEET
Options:
  • A Mπ2
  • B M2
  • C 2Mπ
  • D Mπ22
Solution:
2705 Upvotes Verified Answer
The correct answer is: Mπ22
Magnetic length is minimum length between north pole and south pole

M=Mθ2sinθ2

Here θ=π2

M' = Mπ22

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