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InterviewSolution
| 1. |
In terms of band theory , what is the differnec (i) Between a conductor and an insulator. (ii) between a conductor and a semicondutor ? |
| Answer» (i) The energy gap betweeen the valence band and conduction band in an insulation is very large wheras in a conductor , the energy gap is very small or there is overlapping between valance band and conduction band. (ii) In a conductor, there is very small, energy gap or there is overlapping between valance band and conduction band but in a semiconductor, there is always a small energy between them. | |