A piece of copper and another of germanium ar | vedclass

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(D) The resistance of conductors depends on the temperature. For a conductor like copper,the resistance decreases as the temperature decreases.For a s

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copper decreases and germanium increases

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(D) The resistance of conductors depends on the temperature. For a conductor like copper,the resistance decreases as the temperature decreases.For a semiconductor like germanium,the resistance increases as the temperature decreases because the number of charge carriers (electrons and holes) decreases significantly at lower temperatures.Therefore,when cooled from room temperature to $77 \ K$,the resistance of copper decreases and the resistance of germanium increases.

$A$ piece of copper and another of germanium are cooled from room temperature to $77 \ K$. The resistance of

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