JEE Mains · Physics · STD 12 - 14. Semicondutor electronics
In an unbiased \(n-p\) junction electrons diffuse from \(n-\) region to \(p-\) region because
- A holes in \(p-\) region attract them
- B electrons travel across the junction due to potential difference
- C only electrons move from \(n\) to \(p\) region and not the vice-versa
- D electron concentration in \(n-\) region is more compared to that in \(p-\) region
Answer & Solution
Correct Answer
(D) electron concentration in \(n-\) region is more compared to that in \(p-\) region
Step-by-step Solution
Detailed explanation
Electrons in an unbiased \(p-n\) junction, diffuse from \(n -\) region \(i.e.\) higher electron concentration to \(p-\) region \(i.e.\) low electron concentration region.
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