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MHT CET 2026 (13 May, Shift 2) · Magnetisation: B, H, M, χ & μ

Magnetisation: B, H, M, χ & μ question from MHT CET 2026 (13 May, Shift 2)

Q9MHT CET 2026 · 13 MAY · SHIFT 2Medium

Magnetisation: B, H, M, χ & μ

A domain in a ferromagnetic substance is in the form of a cube of side 'LL'. If it contains 'NN' atoms and each atomic dipole moment MM then the magnetisation of the domain is

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Answer: (b)

  1. Total dipole moment of the domain =NM= NM; volume =L3= L^3.
  2. Magnetisation =momentvolume=MNL3= \dfrac{\text{moment}}{\text{volume}} = \dfrac{MN}{L^3}
  3. So the answer is (b).
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