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MCQs

Total Questions : 29 | Page 2 of 3 pages
Question 11. When a transistor is used as an amplifier, it is operated in the ___________ region
  1.    Off
  2.    Saturation
  3.    Active
  4.    None of the above
 Discuss Question
Answer: Option C. -> Active
Question 12. When a rectangular voltage waveform is applied to a capacitor, then the current waveform is ___________.
  1.    Rectangular
  2.    Sinusoidal
  3.    Sawtooth
  4.    Square
 Discuss Question
Answer: Option A. -> Rectangular
Question 13. If d.c. supply of 10 V is fed to a differentiating circuit, then output will be .
  1.    20 V
  2.    10 V
  3.    0 V
  4.    None of the above
 Discuss Question
Answer: Option C. -> 0 V
Question 14. A switch has ___________.
  1.    One state
  2.    Two states
  3.    Three states
  4.    None of the above
 Discuss Question
Answer: Option B. -> Two states
Question 15. The positive clipper is that which removes the ___________ half-cycles of the input voltage.
  1.    Negative
  2.    Positive
  3.    Both positive and negative
  4.    None of the above
 Discuss Question
Answer: Option B. -> Positive
Question 16. A differentiating circuit is a simple RC circuit with output taken across ___________.
  1.    R
  2.    C
  3.    Both R and C
  4.    None of the above
 Discuss Question
Answer: Option A. -> R
Question 17. For an integrating circuit to be effective , the RC product should be ___________ the time period of the input wave.
  1.    5 times greater than
  2.    5 times smaller than
  3.    Equal to
  4.    At least 10 times greater than
 Discuss Question
Answer: Option D. -> At least 10 times greater than
Question 18. For a differentiating circuit to be effective, the RC product should be ___________ the time period of the input wave.
  1.    Equal to
  2.    5 times greater than
  3.    5 times smaller than
  4.    At least 10 times greater than
 Discuss Question
Answer: Option D. -> At least 10 times greater than
Question 19. A negative clipper removes the ___________ half-cycles of the input voltage.
  1.    Negative
  2.    Positive
  3.    Both positive and negative
  4.    None of the above
 Discuss Question
Answer: Option A. -> Negative
Question 20. The maximum speed of electronic switch can be ___________ operations per second.
  1.    104
  2.    10
  3.    1000
  4.    109
 Discuss Question
Answer: Option D. -> 109

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