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In an unbiased p-n junction, holes diffu...

In an unbiased p-n junction, holes diffuse from the p-region ton-region because
(a) free electron 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.

Text Solution

Verified by Experts

The correct Answer is:
c
In an unbiased p-n junction , the diffusion of charge carriers across the junction takes place from higher concentration to lower concentration.Therefore, hole concentration in p-region is more as compared to n-region.
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