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Current Electricity question

2001 · Q171
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Current Electricity question

2001 · Q171

NEETPhysicsCurrent ElectricityMCQ+4 / −1
Copper and silicon is cooled from 300 K to 60 K , the specific resistance
  1. A
    decrease in copper but increase in silicon
  2. B
    increase in copper but decrease in silicon
  3. C
    increase in both
  4. D
    decrease in both
View written solutionFree

Correct answer: A

For metals specific resistance decrease with decrease in temperature whereas for semiconductors specific resistance increases with decrease in temperature.

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