First slide

P-N junction diode

Question

What accounts for the flow of charge carriers in forward and reverse biasing of silicon p-n diode?

Easy

A

Drift in forward bias and diffusion in forward bias
B

Drift in reverse bias and diffusion in forward bias
C

Drift in both reverse and forward bias
D

Diffusion in both forward and reverse bias

Solution

Drift current flows from n-side to p-side while diffusion current flows from p-side to n-side. In forward biasing, diffusion current is more than the drift current and in reverse biasing, drift current is more than the diffusion current.

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