Rankers Physics

Magnetic Properties of Matter: Practice Problem & Solution

31. Nickel shows ferromagnetic property at room temperature. If the temperature is increased beyond Curie temperature, then it will show: (2007)
Anti ferro-magnetism
No magnetic property
Diamagnetism
Paramagnetism

Solution Explained:

To solve this problem, we apply the core principles of Magnetic Properties of Matter. Understanding the underlying formula is key to arriving at the correct answer below:

When a ferromagnetic substance like nickel is heated beyond its Curie temperature ($T_C$), domain alignment is disrupted by thermal energy, and it behaves as a paramagnetic substance.

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