CUET · PHYSICS · PYQ PAPER 2023
Which of the following causes electric conduction in a semiconductor?
- A Holes only
- B Electrons only
- C Both electrons and holes
- D Neither holes nor electrons
Answer & Solution
Correct Answer
(C) Both electrons and holes
Step-by-step Solution
Detailed explanation
In a semiconductor, electrical conduction occurs through two types of charge carriers: free electrons moving in the conduction band and holes moving in the valence band. Unlike metals where only electrons flow, the movement of both contributes to the total current. C) Both…
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