AC current gain for transistor in common emitter amplifier is 20. If input and output resistances are `2 k Omega` and `5 K Omega` respectively, find: Voltage gain

AC current gain for transistor in common emitter amplifier is 20. If input and output resistances are 2 k Omega and 5 K Omega respectively, find: Power gain

Define d.c. current gain in common base and common emitter amplifier. Also find a relation between them.

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.

A common emitter circuit has an input resistance of 570 Omega and output resistance of 59 k Omega .If the current gain is 60, find the voltage gain andpower gain.