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MCQs

Total Questions : 37 | Page 4 of 4 pages
Question 31. The bandwidth of a single stage amplifier is ___________ that of a multistage amplifier
  1.    More than
  2.    The same as
  3.    Less than
  4.    Data insufficient
 Discuss Question
Answer: Option A. -> More than
Question 32. The purpose of RC or transformer coupling is to ___________
  1.    Block a.c.
  2.    Separate bias of one stage from another
  3.    Increase thermal stability
  4.    None of the above
 Discuss Question
Answer: Option B. -> Separate bias of one stage from another
Question 33. Transformer coupling is generally employed when load resistance is
  1.    Large
  2.    Very large
  3.    Small
  4.    None of the above
 Discuss Question
Answer: Option C. -> Small
Question 34. In transistor amplifiers, we use ___________ transformer for impedance matching
  1.    Step up
  2.    Step down
  3.    Same turn ratio
  4.    None of the above
 Discuss Question
Answer: Option B. -> Step down
Question 35. The frequency response of transformer coupling is ___________
  1.    Good
  2.    Very good
  3.    Excellent
  4.    Poor
 Discuss Question
Answer: Option D. -> Poor
Question 36. The total gain of a multistage amplifier is less than the product of the gains of individual stages due to ___________
  1.    Power loss in the coupling device
  2.    Loading effect of the next stage
  3.    The use of many transistors
  4.    The use of many capacitors
 Discuss Question
Answer: Option B. -> Loading effect of the next stage
Question 37. In practice, voltage gain is expressed ___________
  1.    In db
  2.    In volts
  3.    As a number
  4.    None of the above
 Discuss Question
Answer: Option A. -> In db

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