Multiple choice

In a semi conductor, the energy gap between valence band and conduction band is _______.

  1. 15 ev

  2. 5 ev

  3. 0.72 ev

  4. 0.17 ev
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The energy gap for silicon is approximately 1.1 eV and for germanium it is 0.67 eV. 0.72 eV is the standard accepted value for germanium in many textbooks.

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