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 increases

B

Each of these decreases

C

Copper strip increases and that of germanium decreases

D

Copper strip decreases and that of germanium increases

Verified by Experts

The correct Answer is:

D

For conductorrs `rho prop T, R prop T`
For semiconductors `rho prop 1/T, R prop 1/T`

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