Which of the following statements are correct?
(A) In a p-n junction diode, accumulation of electric charge of the opposite type on two sides of the junction produces an electric field and a potential barrier,
(B) the potential barrier opposes the movement of the majority charge carriers across the junction.
(C) In the reverse biased p-n junction, the width of the depletion layer decreases.
(D)In forward bias of a p-n junction, the potential barrier increases.
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → (A) and (B) only
(A) Correct — charge accumulation on both sides forms the potential barrier.
(B) Correct — the barrier opposes majority carriers.
(C) Incorrect — in reverse bias, depletion layer width increases, not decreases.
(D) Incorrect — in forward bias, potential barrier decreases.
Correct statements: (A), (B)