PN Junction MCQs Test Online PDF Download

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MCQ on PN JunctionQuiz PDF Download

MCQ: One that is based on forward biased PN junction is

  1. photo diode
  2. LED
  3. photo voltaic cell
  4. both a and b


MCQ: Diode characteristic curve is a plot between

  1. current and time
  2. voltage and time
  3. voltage and current
  4. both a and b


MCQ: Photo diode is used for detection of

  1. visible light
  2. invisible light
  3. no light
  4. both a and b


MCQ: When semiconductor is doped half with trivalent and half with pentavalent impurities, junction formed is known as

  1. PN junction
  2. barrier junction
  3. potential barrier
  4. both a and b


MCQ: Color of light emitted by LED depends on

  1. its forward bias
  2. its reverse bias
  3. forward current
  4. semiconductor material