Class B Output Stage MCQ

Test your knowledge with important Class B Output Stage MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Class B Output Stage MCQs on Bissoy. Bissoy App

• The most important consideration in power amplifier is ________
  ক

  Biasing the circuit

  খ

  Impedance Matching

  গ

  Collector Efficiency

  ঘ

  To keep the transformer cool
• The Power amplifiers generally use transformer coupling because the transformer permits ________
  ক

  Cooling of the circuit

  খ

  Impedance Matching

  গ

  Distortion less Output

  ঘ

  Good Frequency Response
• The disadvantage of impedance matching is that it ________
  ক

  Gives distorted output

  খ

  Gives low power output

  গ

  Requires a transformer

  ঘ

  None of the mentioned
• The push-pull circuit must use ________ operation.
  ক

  Class A

  খ

  Class B

  গ

  Class C

  ঘ

  Class AB
• The maximum a.c. power output from a class B power amplifier is 10 W. What should be the minimum power rating of the transistor used?
  ক

  10W

  খ

  15W

  গ

  4W

  ঘ

  20W
• The size of a power transistor is made considerably large to ________
  ক

  Provide easy handling

  খ

  Dissipate heat

  গ

  Facilitate connections

  ঘ

  Larger Gain
• The output stage of a multistage amplifier usually employs ________
  ক

  Push-pull amplifier

  খ

  Preamplifier

  গ

  Class A power amplifier

  ঘ

  Class B power amplifier
• When a transistor is in cut off________
  ক

  Maximum voltage appears across transistor

  খ

  Maximum voltage appears across load

  গ

  Maximum current flows

  ঘ

  Least current flows
• A 2-transistor class B power amplifier is commonly called ________ amplifier
  ক

  Dual

  খ

  Single ended

  গ

  Push-pull

  ঘ

  Differential
• The maximum collector efficiency of class B operation is ________
  ক

  50%

  খ

  25%

  গ

  30%

  ঘ

  5%