In the figure $V_0$ is the potential barrier across a p-n junction, when no battery is connected across the junction. Effective barrier potential heights A and C are found when p-n junction is baised. Choose the correct option.
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) - C corresponds to forward bias and A to Reverse bias.
The height of potential barrier ($V_0$) decreases when the p-n junction is forward bias.
∴ C is in forward bias.
and,
Consequently, A is in Reverse bias.