Two identical current-carrying coaxial loops carry current I in opposite senses. A simple Amperian loop C passes through both of them once. Which of the following statements is correct?

Question

Physics · Moving Charges and Magnetism

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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Correct answer

There may be a point on C where B and dl are perpendicular

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Answer 1

B vanishes everywhere on C

Answer 2

There may be a point on C where B and dl are perpendicular

Answer 3

The value of ∮C B·dl depends on the sense of orientation of C

Answer 4

∮C B·dl = ±2μ0I

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