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A wire of Aluminium and a wire of German...

A wire of Aluminium and a wire of Germanium are cooled to a temperature of `77^@` K.

A

Resistance of each of them decreases

B

Resistance of each of them increases

C

Resistance of Aluminium wire increases and that of Germanium wire decreases

D

Resistance of Aluminium wire decreases and that of Germanium wire increase

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The correct Answer is:
D
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