A piece of copper and another of germanium are cooled from room temperature to 77 K, the resistance of ……….

A piece of copper and another of germanium are cooled from room temper

1.	A piece of copper and another of germanium are cooled from room temperature to 77 K, the resistance of ……….
Answer» the resistance of each INCREASES. the resistance of each decreases. the resistance of COPPER increases, while germanium decreases. the resistance of germanium increases, while copper decreases. Solution :the resistance of germanium increases, while copper decreases. The resistance of copper decreases with temperature while resistance of SEMICONDUCTOR germanium increases with DECREASING temperature.

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A piece of copper and another of germanium are cooled from room temperature to 77 K, the resistance of ……….

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