A) Drift in forward bias, diffusion in reverse bias
B) Diffusion in forward bias, drift in reverse bias
C) Diffusion in both forward and reverse bias
D) Drift in both forward and reverse bias
Correct Answer: B
Solution :
In forward biasing the diffusion current increases and drift current remains constant so not current is due to the diffusion. In reverse biasing diffusion becomes more difficult so net current (very small) is due to the drift.
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