Q.1
A buffer amplifier should have
  • low input impedance and high output impedance
  • high input impedance and high output impedance
  • high input impedance and low output impedance
  • low input impedance and low output impedance
Q.2
The units of transistor h parameters hand hare
  • Same
  • Different
Q.3
Whenever load is coupled class A amplifier through transformer efficiency
  • Increases
  • Decreases
  • Nothing happen
Q.4
In a CE amplifier drives a low load resistance directly the result will be
  • overloading of amplifier
  • underloading of amplifier
  • overloading or underloading of amplifier depending on circuit
  • none of the above
Q.5
The ideal characteristics of a stabilizer is
  • constant output voltage with low internal resistance
  • constant output current with low internal resistance
  • constant output voltage with high internal resistance
  • constant internal resistance and constant output current
Q.6
The dissipation at the collector is in the quiescent state and increases with excitation in the case of a
  • class A series fed Amplifier
  • class A transistor coupled Amplifier
  • class AB amplifier
  • class B amplifier
Q.7
In an amplifier the voltage gain is the ratio of
  • output voltage and emitter resistance
  • output voltage and input current
  • output voltage and input voltage
  • none of the above
Q.8
The value of parameter re used in re transistor model
  • increases with increase in temperature
  • decreases with increase in temperature
  • is not affected by increase in temperature
  • either (b) or (c)
0 h : 0 m : 1 s