Which of the following statements is true about the conduction and valence bands of a semiconductor?

JAMB Physics 2023 355 views
Source: JAMB · 2023

Which of the following statements is true about the conduction and valence bands of a semiconductor?

  1. The conduction band is always empty, while the valence band is always full.
  2. The conduction band is always full, while the valence band is always empty.
  3. The conduction band and the valence band can overlap.
  4. The conduction band and the valence band are always separated by a finite energy gap. ✓

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