KCET · Physics · Current Electricity
Copper and Germanium are cooled from room temperature to \(100 \mathrm{~K}\). Then, the resistance of
- A germanium increases, copper increases
- B germanium decreases, copper increases
- C germanium decreases, copper decreases
- D germanium increases, copper decreases
Answer & Solution
Correct Answer
(D) germanium increases, copper decreases
Step-by-step Solution
Detailed explanation
Resistance of conductor decreases while those of semiconductors increases on cooling.
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