Describe conductor, semiconductor andinsulator in terms of band gap. – InterviewSolution

1.	Describe conductor, semiconductor andinsulator in terms of band gap.
Answer» Ininsulatorsthe electrons in the valencebandare separated by a largegapfrom the conductionband, inconductorslike metals the valencebandoverlaps the conductionband, and insemiconductorsthere is a small enoughgapbetween the valence and conductionbandsthat thermal or other excitations can bridge thegap

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