Discuss the working of n-p-n transistor as an amplifier in common base mode.

Discuss the working of p-n-p transistor as an amplifier in common emitter mode.

With the help of lebelled circuit diagram, discuss the working of transistor as a common emitter amplifier.Find the phase relationship between input and output signals. Also define its voltage gain.

Draw a circuit diagram for use of NPN trnasistor as an amplifier in common emitter configuration. The input resitance of transistor is 1000 Omega . On changing its base current by 10muA , the collector current is increased by 2mA. If the load resistance 5k Omega is used in the circuit, calculate the voltage gain of amplifier.

Explain with diagram, the working of a transistor as a common-emitter amplifier.

Fill in the blanks: For using a transistor as an amplifier, the base emitter junction is ……………. Biased and the base collector junction is …………… biased. (forward, reverse, forward, reverse)