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QPage 277: Q2: HC Verma: Concepts of Physics - Volume 2 Permanent Magnets Page 277: Q2 Solution: A horizontal circular loop carries a current that looks…

⚠️ Common Exam Traps & Conceptual Pitfalls

Students often reverse the magnetic pole assignment, mistakenly placing the North pole on the side facing the observer for a clockwise current. Remember that a clockwise current creates a magnetic field directed into the page (downward), so the South pole must be on the top side and the North pole on the bottom side.

A horizontal circular loop carries a current that looks clockwise when viewed from above. It is replaced by an equivalent magnetic dipole consisting of a south pole S and a north pole N.

Multiple Choice Options

  • A The line SN should be along a diameter of the loop.
  • B The line SN should be perpendicular to the plane of the loop
  • C The south pole should be below the loop
  • D The north pole should be below the loop

Step-by-Step Verified Solution

**Answer:** (b), (d). **Step-by-Step Explanation:** For a clockwise current viewed from above, the equivalent dipole has N below and S above. The line SN is perpendicular to the plane of the loop.

All Questions in this Chapter

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