Give a circuit diagram of a common emitter amplifier using an n-p-n transistor. Draw the input and output wavefroms of the signal. Write the expression for its voltage gain.

In a common emitter amplifier circuit using an n-p-n transistor, the phase difference between the input and the output voltages will be:-

Draw the labelled circuit diagram of a common-emitter transistor amplifier : Explain clearly how the input and output signals are in opposite phase.

A common-emitter amplifier is designed with an n-p-n transistor (alpha=0.99) .The input impedance is 1kOmega and the load is 10kOmega .The voltage gain will be

In a common emitter amplifier, the input and output voltage are out of phase by

Draw the circuit diagram of a common emitter transistor amplifier. Write the expression for its voltage gain. Explain , how the input and output signal differ in phase by 180^(@)

(a) Differentiate between three segments of a transistor on the basis of their size and level of doping. (b) How is a transistor biased to be in active state? (c) With the help of a necessary circuit diagram, describe briefly how n-p-n transistor in CE configuration amplifies a small sinusoidal input voltage. Write the expression for the ac current gain.

Draw a labelled circuit diagram of a transistor as a switch and draw its input and output graphs.

(a) Draw the circuit diagram of reversed bias p-n junction. (b). Draw the output wavefrom across diode in given circuit. (c). Draw the truth table for the given logic gate.

A common emitter amplifier has a voltage gain of 50, an input impedance of 200 Omega and an output impedance of 400 Omega . Calculate the power gain of the amplifier.