Semiconductor Electronics Materials Devices and Simple Circuits - Result Question 49

50. When a $p-n$ junction diode is reverse biased the flow of current across the junction is mainly due to

(a) diffusion of charges

[1994]

(b) drift of charges

(c) depends on the nature of material

(d) both drift and diffusion of charges

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Answer:

Correct Answer: 50. (b)

Solution:

  1. (b) When $p-n$ junction is reverse biased, the flow of current is due to drifting of minority charge carriers across the junction.