Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-fact-Easy-Class 12
What occurs at a p-n junction under equilibrium?
A
There is no net current flowing.
B
The drift current is larger than the diffusion current.
C
Electrons continuously flow from the p-region to the n-region.
D
A strong electric field is absent across the junction.
Correct Answer
Option A
Detailed Explanation
At equilibrium in a p-n junction, the diffusion current equals the drift current, resulting in no net current flowing. This is described in the context where the loss of electrons from the n-region and gain by the p-region establishes a potential difference that opposes further carrier flow.
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