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Q.
The relation among the forbidden energy band gap in conductors, semiconductors and insulators is
Rajasthan PETRajasthan PET 2001
Solution:
In insulator, the forbidden energy gap is very large, in case of semiconductor it is moderate and in conductors the energy gap is zero. So $ \Delta E{{g}_{c}}<\Delta E{{g}_{s}}<\Delta E{{g}_{i}} $