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The forbidden energy gap for germanium at room temperature is approximately
- A.
- B.
- C.
- D.
Show correct answer & step-by-step solution
Correct answer: B —
Solution
- The forbidden energy gap is the energy required to excite an electron from the valence band to the conduction band.
- For germanium, this value is experimentally determined to be approximately .
- For silicon, this value is approximately .
- Hence the answer is (B).
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