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When does a ferromagnetic material become paramagnetic material?

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in Engineering Physics II by (679k points)
When does a ferromagnetic material become paramagnetic material?

(a) At Curie temperature

(b) Below Curie temperature

(c) Above Curies temperature

(d) Never

I had been asked this question in examination.

My doubt stems from Theory of Ferromagnetism in portion Magnetic Properties of Materials of Engineering Physics II

1 Answer

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Best answer
The correct answer is (c) Above Curies temperature

The best explanation: Curie temperature is the temperature at which the magnetic properties of a material change. When the temperature is greater than curie temperature, ferromagnetic material becomes paramagnetic material.

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