Define an amplifier.
What is small-signal amplifier?
What is ac emitter resistance?
What is the effect of emitter resistance and emitter bypass capacitor in a CE amplifier? What happenes when the emitter bypass capacitor is removed from a CE amplifier?
Why is a common-collector amplifier circuit called an emitter follower?
What is distortion in an amplifier? Why is distortion in an amplifier not permissible?
What is transconductance?
Define ac beta and dc beta.
What is time constant (t) of an RC circuit?
What is rise time tr?
What is -3 dB frequency?
What is bandwidth?
Define beta cut-off and alpha cut-off frequencies. Write the relationship between fα and fβ.
If hfe = 50 and fβ = 20 MHz, what is fT or gain bandwidth product?
What is Miller’s theorem?
What is the effect of coupling capacitor on voltage gain of an amplifier?
What is the effect of bypass capacitor on voltage gain of an amplifier?
Why are amplifiers connected in cascade?
Which transistor configuration is most commonly used for multistage or cascade amplifier?
Why is coupling capacitor in a CE,RC coupled amplifier called blocking capacitor?
Why is gain of RC coupled amplifier constant in mid-frequency range?
Why is a bypass capacitor used at the bottom of each secondary winding in a transformer-coupled amplifier?
What are the main features of cascade amplifier?
Why is direct coupling not suitable for high-frequency signal amplification?