COMEDK · Physics · 30. Semiconductors
In intrinsic semiconductors at room temperature, number of electrons and holes are
- A zero
- B unequal
- C equal
- D infinity
Answer & Solution
Correct Answer
(C) equal
Step-by-step Solution
Detailed explanation
In an intrinsic semiconductor, the charge carriers are generated solely due to thermal excitation of electrons from the valence band to the conduction band. When an electron is excited to the conduction band, it leaves behind a vacancy in the valence band, which is referred to…
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