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Question: Answered & Verified by Expert
Torque acting on a rectangular coil carrying current ‘i’ situated parallel to magnetic field of current ‘i’ situated parallel to magnetic field of induction ‘B’, having number of turns ‘n’ and area ‘A’ is
PhysicsMagnetic Effects of CurrentMHT CETMHT CET 2019 (Shift 2)
Options:
  • A niA^.B^
  • B nBAi
  • C niA×B
  • D iBAn
Solution:
1224 Upvotes Verified Answer
The correct answer is: niA×B
When a current carrying coil is placed in a magnetic field, the coil experienced a torque given by
τ=M×B
Where, M = magnetic moment = niA
τ=niA×B
Where, n = number of turns,
i = current flowing in coil
A= Area of coil

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