In an unbiased p-n junction electrons diffuse from n-region to p-region because :-

Question

In an unbiased p-n junction electrons diffuse from n-region to p-region because :-

In an unbiased p-n junction electrons diffuse from n-region to p-region because :-
A. free electrons in the n-region attract them.
B. they move across the junction by the potential difference.
C. hole concentration in p-region is more as compared to n-region.
D. All the above.

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

The correct statement is (c).
The diffusion of charge carriers across a junction takes place from the region of higher concentration to the region of lower concentration. In this case, the p-region has greater concentration of holes the n-region. Hence, in an unbiased p-n junction, holes diffues from the p-region to the n-region.