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Physics
For transistor action, which of the following statements is correct ?
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Q. For transistor action, which of the following statements is correct ?
NEET
NEET 2020
Semiconductor Electronics: Materials Devices and Simple Circuits
A
Base, emitter and collector regions should have same doping concentrations.
6%
B
Base, emitter and collector regions should have same size.
12%
C
Both emitter junction as well as the collector junction are forward biased.
6%
D
The base region must be very thin and lightly doped.
75%
Solution:
For Bi-polar junction transistor,
Length profile is $L_{C}>\,L_{E}>\,L_{B}$
and doping profile is $E>\,C>\,B$
