Question

A transistor is used in the common emitter mode as an amplifier. Then 

(a) the base – emitter junction is forward – biased 

(b) the base – emitter junction is reverse – biased 

(c) the input signal is connected in series with the voltage applied to bias the base – emitter junction 

(d) the input signal is connected in series with the voltage applied to bias the base – collector junction.

Answer 1

(c) the input signal is connected in series with the voltage applied to bias the base – emitter junction

In CE – transistor amplifier, the base – emitter junction is forward bias and the input signal is connected in series with the base – emitter battery.