NEET2013Physics-Semiconductors
NEET 2013 Physics Transistors MCQ Question
Type: MCQ-conceptual-Medium-Class 12
One way in which the operation of a n-p-n transistor differs from that a p-n-p is:
A
The emitter junction injects minority carriers into the base region of the n-p-n
B
The emitter injects holes into the base of the p-n-p and electrons into the base regions of n-p-n
C
The emitter injects holes into the base of n-p-n
D
The emitter junction is reversed biased in n-p-n
Correct Answer
Option B
Detailed Explanation
In an n-p-n transistor, the emitter injects electrons into the base, whereas in a p-n-p transistor, the emitter injects holes into the base.
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