Question

A transistor is used in common emitter mode as an amplifier. Then :
(1) the base-emitter junction is forward biased
(2) the base-emitter junction is reverse biased
(3) the input signal is connected in series with the voltage applied to bias the base-collector junction
(4) the input signal is connected in series with the voltage applied to the base-emitter junction

• A. 1 and 2 are correct
• B. 2 and 3 are correct
• C. 1 and 4 are correct
• D. 1, 2 and 3 are correct

Answer 1

Answer: (C)

While using a transistor as a common-emitter amplifier, the emitter-base junction is forward biased and the signal to be amplified is connected in emitter-base junction.