TS EAMCET · Physics · Communication System
If the temperature of the semi-conductor is increased, which of the following is correct statement?
- A It's resistance increases
- B The number of electrons in valence band increases
- C The number of electrons in conduction band increases
- D The number of holes in valence band decreases
Answer & Solution
Correct Answer
(C) The number of electrons in conduction band increases
Step-by-step Solution
Detailed explanation
In the case of semiconductors, resistivity is inversely proportional to the temperature. In this case as temperature increases, electrons jump to conduction band resistance decreases. So resistivity also decreases and current increases. The vibration of electrons increases with…
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