NEET-XII-Physics
neet 2020 questions with solutions year:2020
- #21For transistor action, which of the following statements is correct ?
(A)Base, emitter and collector regions should have same doping concentrations.
(B)Base, emitter and collector regions should have same size.
(C)Both emitter junction as well as the collector junction are forward biased.
(D)The base region must be very thin and lightly doped.
digAnsr: DAns :
For Bi-polar junction transistor,
Length profile is `` L_{C}>\,L_{E}>\,L_{B} ``
and doping profile is `` E>\,C>\,B ``