Curie temperature of iron is the temperature below which it is:
Correct answer: B. Ferromagnetic
- A. Diamagnetic
- B. Ferromagnetic
- C. Low retentivity
- D. Both (a) and (c)
Explanation
The Curie temperature is a critical point for magneticmaterials. Below this temperature, a material like ironexhibits strong ferromagnetic properties; above it, thermalagitation overcomes the magnetic alignment, and itbecomes paramagnetic.
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Solids are compared through crystal structure, amorphous arrangement, elasticity, plastic deformation, stress, strain and Young’s modulus. Electrical behavior depends on available charge carriers and band structure, so conductors, insulators and semiconductors must be distinguished from mechanical properties such as strength, stiffness and brittleness.
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