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Moving Charges and Magnetism question

2024 · Q158
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Moving Charges and Magnetism question

2024 · Q158

NEETPhysicsMoving Charges and MagnetismMCQ+4 / −1

A tightly wound 100 turns coil of radius 10 cm10 \mathrm{~cm}10 cm carries a current of 7 A7 \mathrm{~A}7 A. The magnitude of the magnetic field at the centre of the coil is (Take permeability of free space as 4π×10−7SI4 \pi \times 10^{-7} \mathrm{SI}4π×10−7SI units):

  1. A
    44 mT
  2. B
    4.4 T
  3. C
    4.4 mT
  4. D
    44 T
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