Application of a forward bias to a p-n junction:
A)narrows the depletion zone
B)increases the electric field in the depletion zone
C)increases the potential difference across the depletion zone
D)increases the number of donors on the n side
E)decreases the number of donors on the n side

Question

Quizplus · Accepted Answer

When a forward bias is applied to a p-n junction, it introduces minority carriers (electrons in the p-side and holes in the n-side) into the depletion zone. This causes the depletion layer to narrow as the minority carriers recombine with majority carriers, reducing the width of the depletion region. Therefore, option A is the correct choice.

B) Increasing the voltage across the p-n junction increases the electric field within the depletion region. This occurs in both forward and reverse bias conditions.

C) The potential difference across the depletion zone decreases when a forward bias is applied.

D) A forward bias does not increase the number of donors on the n side.

E) A forward bias does not decrease the number of donors on the n side.

Application of a Forward Bias to a P-N Junction