Pn Junction Diode MCQ

Below Pn Junction Diode quiz are Multiple Choice Questions (MCQs) type Quiz. These Pn Junction Diode MCQ Questions helps you to refresh your Pn Junction Diode, you can see the correct option by clicking on it. .
  • 1. Which of the below mentioned statements is false regarding a p-n junction diode?

    • Diodes are rectifying devices
    • Diodes are unidirectional devices
    • Diodes have three terminals
    • Diode are uncontrolled devices
  • 2. The current in a semiconductor is produced by

    • electron only
    • holes only
    • negative ions
    • both electrons and holes
  • 3. The displacement of the charges results in

    • Magnetic field
    • Electric field
    • Rust
    • Hall effect
  • 4. When the diode is forward biased, it is equivalent to

    • An off switch
    • An On switch
    • A high resistance
    • None of the above
  • 5. The depletion region consists of

    • Nothing but minority carriers
    • Positive and negative ions
    • No majority carrier
    • (ii) and (iii)
  • 6. The depletion region contains

    • Electrons
    • Holes
    • Immobilized charge carriers
    • Sea of electrons
  • 7. The arrow direction in the diode symbol indicates

    • Direction of electron flow
    • Direction of hole flow (Direction of conventional current)
    • Opposite to the direction of hole flow
    • None of the above
  • 8. In a reverse biased PN junction, the current through the junction increases abruptly at

    • 0.5 V
    • 1.1V
    • 0.72 V
    • Breakdown voltage
  • 9. In Half wave rectifier the diode conducts in only___

    • positive half cycle
    • negative half cycle
  • 10. Main phenomenons associated with formation of p-n junctions are

    • Drift only
    • Diffusion only
    • Diffusion and Drift
    • only doping