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Question: Answered & Verified by Expert
If the magnetic field is parallel to a surface, then the magnetic flux through the surface is
PhysicsMagnetic Effects of CurrentNEET
Options:
  • A zero
  • B small but not zero
  • C infinite
  • D large but not infinite
Solution:
1512 Upvotes Verified Answer
The correct answer is: zero
ϕ=B.A

The area vector A is perpendicular to the surface. So, when the surface is parallel to the magnetic field, the angle between B and A is 90°.

Hence ϕ=0.

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