Nickel is ferromagnetic at room temperature. What does it become when heated above its Curie temperature?
Options

Question

Nickel is ferromagnetic at room temperature. What does it become when heated above its Curie temperature?

G1 Physics · Accepted Answer

Step 1: Nickel is ferromagnetic at room temperature because its magnetic domains can align cooperatively. Step 2: Above the Curie point this spontaneous alignment disappears, although individual moments remain. Step 3: The high-temperature phase is paramagnetic. Answer D. Final answer: (D) paramagnetism. {AIPMT 200°.