MCQ
Pick out the temperature at which iron becomes paramagnetic?
- ✓$800^\circ C$
- B$700^\circ C$
- C$600^\circ C$
- D$500^\circ C$
✓
Answer
Correct option: A.
$800^\circ C$
Iron is a ferromagnetic material. Ferromagnetism decreases with a rise in temperature, and above a certain temperature called “Curie’s temperature,” ferromagnets become paramagnets. For iron, it is approximately, $800^\circ C.$
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