Solid State Switching Circuits

11. An integrating circuit is a simple RC series circuit with output taken across _________

  1. Both R and C
  2. R
  3. C
  4. None of the above

Correct answer: (C)
C

12. 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

Correct answer: (D)
At least 10 times greater than

13. 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

Correct answer: (D)
At least 10 times greater than

14. If a square wave is fed to a differentiating circuit, the output will be _________

  1. Sine wave
  2. Sharp narrow pulses
  3. Rectangular wave
  4. Triangular wave

Correct answer: (B)
Sharp narrow pulses

15. 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

Correct answer: (C)
0 V

16. If the input to a differentiating circuit is a saw-tooth wave, then output will be _________

  1. Square
  2. Triangular
  3. Sine
  4. Rectangular

Correct answer: (D)
Rectangular

17. If the input to an integrating circuit is a succession of alternating positive and negative pulses of very short duration, the output will be _________ wave

  1. Rectangular
  2. Triangular
  3. Sine
  4. Square

Correct answer: (D)
Square

18. In a multivibrator, we have _________ feedback.

  1. Negative
  2. 100 % positive
  3. Both positive and negative
  4. None of the above

Correct answer: (B)
100 % positive

19. One would find a clamping circuit in _________

  1. Receiving antenna
  2. Radio transmitter
  3. Radio receiver
  4. Television receiver

Correct answer: (D)
Television receiver

20. The main disadvantage of a mechanical switch is that it _________

  1. Is operated mechanically
  2. Is costly
  3. Has high inertia
  4. None of the above

Correct answer: (C)
Has high inertia

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