JEE Advanced · PhysicsEasy
The forbidden energy gap for a semiconductor is typically of the order of
- A.
- B.
- C.
- D.
Show correct answer & step-by-step solution
Correct answer: A —
Solution
- The forbidden energy gap represents the energy difference between the valence band and the conduction band.
- In semiconductors, this gap is small enough to allow thermal excitation of electrons at room temperature.
- Materials with a gap of approximately are classified as semiconductors, whereas insulators have much larger gaps.
- Hence the answer is (A).
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