MHT CET · Physics · Semiconductors
Silicon and copper are cooled from \(300 \mathrm{~K}\) to \(100 \mathrm{~K}\), the specific resistance (resistivity)
- A increase in both copper and silicon
- B decrease in both copper and silicon
- C decrease in copper and increase in silicon
- D increase in copper but decrease in silicon
Answer & Solution
Correct Answer
(C) decrease in copper and increase in silicon
Step-by-step Solution
Detailed explanation
Resistivity of conductors increase with temperature and that of semiconductor decreases with temperature. When temperature is decreased, the resistivity of copper will decrease while that of silicon will increase.
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