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Question: Answered & Verified by Expert
A current $\mathrm{I}$ flows along the length of an infinitely long, straight, thin walled pipe. Then
PhysicsMagnetic Effects of CurrentJEE MainJEE Main 2007
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:
2835 Upvotes Verified Answer
The correct answer is:
the magnetic field at any point inside the pipe is zero
Use Ampere's law

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