Electronic Devices and Communication MCQ with Answers

In semiconductor physics, the depletion region, also called depletion layer, depletion zone, junction region, space charge region or space charge layer, is an insulating region within a conductive, doped semiconductor material where the mobile?charge carriers?have been diffused away

In a p-n junction, as the diffusion process continues the width of the depletion zone decreases

As is not a semiconductor

The?forbidden gap?between the valence band and conduction band is very large in insulators. The energy?gap?of insulator is approximately equal to 15 electron volts (eV). The electrons in valence band cannot move because they are locked up between the atoms.

The main difference between conductors, semiconductors and insulators is because of Width of forbidden energy gap