Discussion :: Materials and Components
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A piece of copper and another piece of Germanium are cooled from 30°C to 80 K. The resistance of
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A.
copper decreases and germanium increases
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B.
both decreases
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C.
both increases
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D.
copper increases and germanium decreases
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Answer : Option A
Explanation :
As temperature is decreased, resistance of conductors decreases and resistance of semiconductors increases.
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