CUET · PHYSICS · PYQ PAPER 2025
By increasing the temperature, resistivity of a conductor and a semiconductor
- A decreases for a conductor and increases for a semiconductor
- B increases for a conductor and decreases for a semiconductor
- C decreases for both
- D increases for both
Answer & Solution
Correct Answer
(A) decreases for a conductor and increases for a semiconductor
Step-by-step Solution
Detailed explanation
For a conductor, resistivity increases with temperature because thermal vibrations cause more frequent electron collisions. For a semiconductor, resistivity decreases because higher temperatures provide enough energy for more electrons to jump into the conduction band,…
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