Reverse biasing of a pn junction tends to
A)increase the potential difference across a junction,thereby encouraging diffusion.
B)decrease the potential difference across a junction,thereby encouraging diffusion.
C)decrease the potential difference across a junction,thereby inhibiting diffusion.
D)increase the potential difference across a junction,thereby inhibiting diffusion.
E)None of these is correct.

Question

Quizplus · Accepted Answer

Reverse biasing of a pn junction increases the potential difference across the junction, which creates a barrier for the majority carriers to diffuse across the junction. As a result, the diffusion current decreases, and the junction becomes highly resistive. Therefore, choice D, increase the potential difference across a junction, thereby inhibiting diffusion, is the correct answer.

Reverse Biasing of a Pn Junction Tends to