| (1) Base, emitter and collector regions should have similar size and doping concentrations. |
| (2) The base region must be very thin and lightly doped. |
| (3) The emitter-base junction is forward biased and base-collector junction is reverse biased. |
| (4) Both the emitter-base junction as well as the base collector junction are forward biased. |
A) (4) and (1)
B) (1) and (2)
C) (2) and (3)
D) (3) and (4)
Correct Answer: C
Solution :
A transistor is mostly used in the active region of operation ie, emitter base junction is forward biased and collector base junction is reverse based. The base region must be very thin and lightly doped.
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