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A strip of copper and another of germani...

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

A

each of these decreases

B

copper strip increase and that of germanium decreases

C

copper strip increase and that of germanium increase

D

each of these increase

Text Solution

Verified by Experts

The correct Answer is:
C
The resistence of metal (like Cu) decreases with decreases in temperature where as the resistence of a semi - conductor (like Ge) increases with decreases in temperature
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