CUET · PHYSICS · PYQ PAPER 2023
In an unbiased p-n junction, holes diffuse from the p-region to n-region because
- A free electrons in the n-region attract them
- B they move across the junction due to the potential difference
- C hole concentration in p-region is more as compared to n-region (due to concentration gradient)
- D hole concentration in n-region is more as compared to p-region
Answer & Solution
Correct Answer
(C) hole concentration in p-region is more as compared to n-region (due to concentration gradient)
Step-by-step Solution
Detailed explanation
Diffusion is a natural process where particles move from an area of high concentration to an area of low concentration. In a p-n junction, the p-region has a much higher density of holes than the n-region, creating a concentration gradient that drives the holes to diffuse across…
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