A piece of copper and another of germanium are cooled from room temperature to 40 K. The resistance of Options: A . &nbspeach of them decreases B . &nbspeach of them increases C . &nbspcopper increases and of germanium decreases D . &nbspcopper decreases and of germanium increases

A piece of copper and another of germanium are cooled from room temperature to 4

Question

A piece of copper and another of germanium are cooled from room temperature to 40 K. The resistance of

Options:

A . each of them decreases

B . each of them increases

C . copper increases and of germanium decreases

D . copper decreases and of germanium increases

Answer: Option D
:
D
copper is a conductor whereas Germanium is a semi conductor

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