Q.1
If a transistor amplifier feeds a load of low resistance (e.g. speaker), then voltage gain will be ___________
Q.2
The value of collector load RC in a transistor amplifier is ___________ the output impedance of the transistor.
Q.3
The purpose of emitter capacitor (i.e. capacitor across RE) is to ___________
Q.4
In a CE amplifier, voltage gain = ___________ x RAC/Rin
Q.5
A single stage transistor amplifier contains ___________ and associated circuitry
Q.6
If RC and RL represent the collector resistance and load resistance respectively in a single stage transistor amplifier, then a.c. load is
Q.7
It is generally desired that a transistor should have ___________ input impedance
Q.8
A single stage transistor amplifier with no load sees an a.c. load of
Q.9
The slope of a.c. load line is ___________ that of d.c. load line
Q.10
For highest power gain, one would use ___________ configuration
Q.11
In order to get more voltage gain from a transistor amplifier, the transistor used should have ___________
  • Thin base
  • Thin collector
  • Wide emitter
  • None of the above
Q.12
If the collector supply is 10V, then collector cut off voltage under d.c. conditions is ___________
  • 20 V
  • 5 V
  • 2 V
  • 10 V
Q.13
The radio wave picked up by the receiving antenna is amplified about times to have reasonable sound output
  • 1000
  • A million
  • 100
  • 10000
Q.14
The point of intersection of d.c. and a.c. load lines is called ___________
  • Saturation point
  • Cut off point
  • Operating point
  • None of the above
Q.15
The purpose of d.c. conditions in a transistor is to ___________
  • Reverse bias the emitter
  • Forward bias the collector
  • Set up operating point
  • None of the above
Q.16
In the a.c. equivalent circuit of a transistor amplifier, the capacitors are considered ___________
  • Short
  • Open
  • Partially open
  • None of the above
Q.17
In the d.c. equivalent circuit of a transistor amplifier, the capacitors are considered ___________
  • Short
  • Open
  • Partially short
  • None of the above
Q.18
In a CE amplifier, the phase difference between voltage across collector load RC and signal voltage is ___________
  • 180°
  • 270°
  • 90°
  • 0°
Q.19
The ratio of output impedance of a CE amplifier is ___________
  • About 1
  • Low
  • High
  • Moderate
Q.20
The phase difference between the output and input voltages of a CE amplifier is ___________
  • 180°
  • 0°
  • 90°
  • 270°
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