Q. The magnetic field at the center of a circular current carrying loop is directly proportional to:

  • (A) Radius of loop
  • (B) Square of radius
  • (C) Current through the loop
  • (D) Resistance of loop
✅ Correct Answer: (C) Current through the loop
Explanation: Magnetic field B = μ₀I/2R, hence it is directly proportional to current.

Published by Jyoti ⭐ 1.79K Points at 15-Jun-2026 06:05 am in Physics

Explanation by: Jyoti
Magnetic field B = μ₀I/2R, hence it is directly proportional to current.

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