Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-diagram based-Medium-Class 12
Consider a diagram showing a p-n junction at equilibrium with the potential barrier indicated across the junction. Which of the following statements about the potential barrier is correct?
A
It opposes the flow of majority carriers across the junction.
B
It enhances the flow of electrons from the p-region to the n-region.
C
It is established due to the accumulation of holes on the n-side.
D
It decreases as diffusion current increases.
Correct Answer
Option A
Detailed Explanation
The potential barrier in a p-n junction at equilibrium opposes the flow of majority carriers, maintaining equilibrium by preventing further carrier flow across the junction, as explained in Chunk 1.
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