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A strip of copper and another of germani...

A strip of copper and another of germanium are cooled from room temperature to 80 K. The resistance of

A

Each of these decreases

B

Copper strip increases and that of germanium decreases

C

Copper strip decreases so that of germanium increases

D

Each of these increases

Text Solution

Verified by Experts

The correct Answer is:
C
Cu is conductor and Ge is semiconductor
Increase of temperature increases resistance of conductor but decreases resistance of semiconductor.
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