A) \[3eV<{{E}_{g}}<6ev\]
B) \[{{E}_{g}}>6eV\]
C) \[{{E}_{g}}<3eV\]
D) \[{{E}_{g}}=0eV\]
Correct Answer: B
Solution :
In insulators, the forbidden energy gap is quite large. For example, the forbidden energy gap for diamond is 6 eV, which means that minimum of 6 eV energy is required to make the electron jump from the completely filled valence band to conduction band.
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