1.

Under the influence of electric field, which of the following statements is true about the movement of electrons and holes in a p-type semiconductor ?

Answer»

Electron will move TOWARDS the positively charged plate through electron HOLES. 
Holes will appear to be MOVING towards the negatively charged plate. 
Both ELECTRONS and holes appear to move towards the positively charged plate. 
Movement of electrons is not related to the movement of holes. 

Solution :In p-type semiconductors, the CONDUCTION takes place through holes. In presence of electric field the holes move towards negatively charged plate while electron flows toward positively charged plate.


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