Semiconductor Electronics Materials Devices and Simple Circuits - Result Question 64
66. One way in which the operation of a $n-p-n$ transistor differs from that of a p-n-p
[NEET Kar. 2013]
(a) the emitter junction is reversed biased in $n-p-n$
(b) the emitter junction injects minority carriers into the base region of the p-n-p
(c) the emitter injects holes into the base of the p-n-p and electrons into the base region of $n-p-n$
(d) the emitter injects holes into the base of $n$-p-n
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Answer:
Correct Answer: 66. (c)
Solution:
- (c) In p-n-p transistor holes are injected into the base while electrons are injected into the base of n-p-n transistor. Emitter-base junction is forward biased.
