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Question: Answered & Verified by Expert
A current I flows along the length of an infinitely long, straight, thin-walled pipe. Then
PhysicsMagnetic Effects of CurrentNEET
Options:
  • A The magnetic field is zero only on the axis of the pipe
  • B The magnetic field is different at different points inside the pipe
  • C The magnetic field at any point inside the pipe is zero
  • D The magnetic field at all points inside the pipe is the same, but not zero
Solution:
1188 Upvotes Verified Answer
The correct answer is: The magnetic field at any point inside the pipe is zero
Using Ampere's circuital law the magnetic field at any point inside the pipe is zero.

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