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Magnetic Materials — Physics STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 SciencePhysicsMagnetic Materials1 Mark
MCQ
If $M_z=$ magnetization of a paramagnetic sample, $B=$ external magnetic field, $T=$ absolute temperature, $C=$ curie constant. Then according to Curie's law in magnetism, the correct relation is
  • A
    $M_z=\frac{T}{C B}$
  • ✓
    $M_x=\frac{C B}{T}$
  • C
    $C=\frac{M_x B}{T}$
  • D
    $C =\frac{T^2}{M_x B}$
✓

Answer

Correct option: B.
$M_x=\frac{C B}{T}$
(b) : According to Curie's law of magnetisation for para-magnet i.e. material, $M_z \propto \frac{1}{T}$ or $\quad M_z=\frac{C B}{T}$, where $C=$ Curie constant

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