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Home ‣ Electronics ‣ Diodes and Applications Comments
  • Question

  • Electrons in the outermost orbit or shell of an atom are called


  • Options
  • A. free electrons
  • B. negative ions
  • C. valence electrons
  • D. conduction band electrons

  • Correct Answer
  • valence electrons 

    • Diodes and Applications problems

    Search Results

    • 1. What is wrong with this diode?


    • Options
    • A. open
    • B. short
    • C. nothing
    • D. not enough data
      • Discuss
    • 2. Providing a constant output regardless of ac input or load resistance changes is the function of a:

    • Options
    • A. transformer
    • B. filter
    • C. regulator
    • D. rectifier
      • Discuss
    • 3. What does Faraday's law concern?

    • Options
    • A. a magnetic field in a coil
    • B. a magnetic field cutting a conductor
    • C. a magnetic field hystersis
    • D. a magnetic field in a conductor
      • Discuss
    • 4. What is the total inductance of a 5 H and a 100 mH coil connected in parallel?

    • Options
    • A. 4.76 mH
    • B. 33.3 mH
    • C. 98.0 mH
    • D. 150.0 mH
      • Discuss
    • 5. What is electromagnetism?

    • Options
    • A. the magnetic field generated around a conductor when a current passes through it
    • B. the magnetic field generated in a conductor by an external voltage
    • C. the voltage caused by a magnetic field in a conductor
    • D. the current generated by an external magnetic field
      • Discuss
    • 6. Rectifier output polarity depends upon:

    • Options
    • A. cycles of input
    • B. capacitor polarity
    • C. half or full wave
    • D. diode installation
      • Discuss
    • 7. What is the current through the zener diode?


    • Options
    • A. 0 mA
    • B. 7 mA
    • C. 8.3 mA
    • D. 13 mA
      • Discuss
    • 8. In a power supply diagram, which block indicates a pulsating dc output?

    • Options
    • A. transformer
    • B. filter
    • C. rectifier
    • D. regulator
      • Discuss
    • 9. The diode schematic arrow points to the:

    • Options
    • A. trivalent-doped material
    • B. positive axial lead
    • C. anode lead
    • D. cathode lead
      • Discuss
    • 10. What is the current through the LED?


    • Options
    • A. 0 mA
    • B. 23 mA
    • C. 18 mA
    • D. 13 mA
      • Discuss

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