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When does a normal conductor become a superconductor?

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When does a normal conductor become a superconductor?

(a) At normal temperature

(b) At Curie temperature

(c) At critical temperature

(d) Never

I have been asked this question during an online exam.

Question is from Hall Effect in portion Semiconductors of Engineering Physics II

1 Answer

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Best answer
Right answer is (c) At critical temperature

Explanation: The temperature at which a normal conductor loses its resistivity and becomes a superconductor is known as transition temperature or critical temperature.

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