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QPages 285-286: Q1: HC Verma: Concepts of Physics - Volume 2 Magnetic Properties of Matter Pages 285-286: Q1 Solution: A paramagnetic material is placed in a magnetic field. Consider …

⚠️ Common Exam Traps & Conceptual Pitfalls

Students often forget that for a paramagnet the magnetisation follows Curie's law $M = \chi H = \frac{C}{T}H$, so raising the temperature reduces $M$ (inverse $T$ dependence), not increases it. Remember to treat temperature as a divisor, not a multiplier, when applying $M\propto H/T$.

A paramagnetic material is placed in a magnetic field. Consider the following statements:- A) If the magnetic field is increased, the magnetisation is increased. B) If the temperature is increased, the magnetisation is increased.

Multiple Choice Options

  • A A and B are true.
  • B A is true but B is false.
  • C B is true but A is false.
  • D A and B are false.

Step-by-Step Verified Solution

**Answer:** (b) A is true but B is false. **Step-by-Step Explanation:** For paramagnetic material, magnetisation increases with field (A true) but decreases with temperature (B false).

All Questions in this Chapter

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