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A piece of copper and another of germani...

A piece of copper and another of germanium are cooled from room temperature to `80^@K`. The resistance of

A

each of them increases

B

each of them decreases

C

copper increases and germanium decreases

D

copper decreases and germanium increases.

Text Solution

Verified by Experts

The correct Answer is:
D
(d) Copper is a metal whereas Germanium is Semi-conductor.
Note : Resistance of metal decreases and semiconductor increases with decrease in temperature.
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