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PhysicsJEE Main 28 Jan 2026, Shift 1·Q18·MCQ·Easy–moderate

Moving Charges and Magnetism · Sources of magnetic field

The magnetic field at the centre of a current carrying circular loop of radius RR is 16 μ16\ \muT. The magnetic field at a distance x=3Rx = \sqrt3 R on its axis from the centre is μ\muT.
  1. (1)222\sqrt2
  2. (2)4
  3. (3)2
  4. (4)8

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