Ncert Exercises & Solutions

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

I.	Electron will move towards the positively charged plate through electron holes
II.	Holes will appear to be moving towards the negatively charged plate
III.	Both electrons and holes appear to move towards the positively charged plate
IV.	Movement of electrons is not related to the movement of holes

The correct choice among the given is-

1. (I, II)

2. (II, III)

3. (III, IV)

4. (I, IV)

Hint: Under the influence of the electric field, electrons would move towards the positively charged plate through electronic holes.

In a p-type semiconductor, the conductivity is due to the existence of hole. When an electric field is applied to a p-type

semiconductor hole stared moves towards the negatively charged plate and electrons towards positively charged plate.

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