Which of the following is NOT true of forward-bias in a diode?
A) Free electrons in the N-material and holes in the P-material both move toward the junction.
B) N-material electrons move across the junction to fill the holes in the P-material.
C) Negatively charged holes left behind in the N-material attract electrons from the negative voltage source.
D) The free electrons that moved into the P-material continue to move toward the positive voltage source.

Question

Quizplus · Accepted Answer

In forward-bias, the positive voltage applied to the P-material repels the holes in the P-material and attracts the free electrons from the N-material. The electrons move across the junction and combine with the holes in the P-material. This creates a depletion region around the junction, which becomes narrower as the forward bias voltage increases. Therefore, negatively charged holes are not left behind in the N-material in forward-bias.

Which of the Following Is NOT True of Forward-Bias in a Diode