Copper and Germanium are cooled from room tem | vedclass

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(D) Copper is a conductor (metal). For metals,the resistance decreases as the temperature decreases because the lattice vibrations (collisions) decrea

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germanium increases,copper decreases

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(D) Copper is a conductor (metal). For metals,the resistance decreases as the temperature decreases because the lattice vibrations (collisions) decrease.Germanium is a semiconductor. For semiconductors,the resistance increases as the temperature decreases because the number of charge carriers (electrons and holes) decreases significantly due to the reduction in thermal energy.

Copper and Germanium are cooled from room temperature to $100 \ K$. Then,the resistance of

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