The temperature at which the magnetic property of iron disappears (i.e., it becomes nonmagnetic) and its electrical conductivity & specific heat also changes, is called the 'Curie point', which is ________________ °C ?
Correct answer: A. 768
- A. 768
- B. 908
- C. 1400
- D. 1539
Explanation
The Curie point of iron is approximately 768°C, above which ferromagnetic iron becomes paramagnetic. The higher values listed are associated with other thermal transitions or the melting point, not the loss of ferromagnetism.
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