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Q. |
Curie point is the temperature at which |
A. | Matter becomes radioactive |
B. | A metal loses magnetic properties |
C. | A metal loses conductivity |
D. | Transmutation of metal occurs |
Answer» B. A metal loses magnetic properties | |
Explanation: In physics and materials science, the Curie temperature (TO, or Curie point, is the temperature at which a ferromagnetic or a ferromagnetic material becomes paramagnetic on heating; the effect is reversible. A magnet will lose its magnetism if heated above the Curie temperature. The term is also used in piezoelectric materials to refer to the temperature at which spontaneous polarization is lost on heating. |
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