Semiconductor Diode

41. The ripple factor of a half-wave rectifier is __________

  1. 21
  2. 0.21
  3. 2.5
  4. 0.48

Correct answer: (D)
0.48

42. There is a need of transformer for __________

  1. half-wave rectifier
  2. centre-tap full-wave rectifier
  3. bridge full-wave rectifier
  4. none of the above

Correct answer: (B)
centre-tap full-wave rectifier

43. When a crystal diode is used as a rectifier, the most important consideration is __________

  1. forward characteristic
  2. doping level
  3. reverse characteristic
  4. PIC rating

Correct answer: (D)
PIC rating

44. When the crystal current diode current is large, the bias is __________

  1. forward
  2. inverse
  3. poor
  4. reverse

Correct answer: (A)
forward

45. When the graph between current through and voltage across a device is a straight line, the device is referred to as __________

  1. linear
  2. active
  3. nonlinear
  4. passive

Correct answer: (A)
linear

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