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Question: Answered & Verified by Expert
A long hollow copper tube carries a current I. Then which of the following will be true?
PhysicsMagnetic Effects of CurrentNEET
Options:
  • A The magnetic field B will be zero at all points inside the tube
  • B The magnetic field B will be zero only at points on the axis of the tube
  • C The magnetic field B will be maximum at points on the axis of the tube
  • D The magnetic field will be zero at any point outside the tube
Solution:
2544 Upvotes Verified Answer
The correct answer is: The magnetic field will be zero at any point outside the tube
The magnetic field B will be uniform inside the hollow tube, excepts near the ends. Also magnetic field is zero at any point outside the tube.

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