For a transistor to be used as an amplifier its input and output regions should be biased respectively in:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Forward and reverse biasing
For a transistor to function as an amplifier, its input and out regions must be biased as follow-
(A) Input Region - forward biased
This insures that the base-emitter junction conducts and allows a small base current to control a large collector current.
(B) Output Region - Reverse Biased
This ensures that the collector-bias junction remains in active region, enabling the transistor to amplify the input signal.