Electronics & Communication Quiz - 2

20 Questions | Total Attempts: 335

SettingsSettingsSettings
Please wait...
Electronics & Communication Quiz - 2

This is a very elementary Quiz containing questions from Solid State Devices, Basic Electronics, etc


Questions and Answers
  • 1. 
    What is Cathode Ray?
    • A. 

      Alpha-Ray

    • B. 

      Beta-ray

    • C. 

      Gamma-ray

    • D. 

      None

  • 2. 
    Who discovered Electron?
    • A. 

      Thomas Alva Edison

    • B. 

      Michael Faraday

    • C. 

      Alexander G. Bell

    • D. 

      J. J. Thomson

  • 3. 
    What is the polarity of Anode
    • A. 

      Negative

    • B. 

      Positive

    • C. 

      Neutral

    • D. 

      Not applicable

  • 4. 
    What is the polarity of Cathode
    • A. 

      Negative

    • B. 

      Positive

    • C. 

      Neutral

    • D. 

      Not applicable

  • 5. 
    What is 1 Torr of pressure
    • A. 

      76cm of Hg

    • B. 

      1cm of Hg

    • C. 

      1mm of Hg

    • D. 

      1 micron of Hg

  • 6. 
    What is the Pressure in a Vacuum-Tube?
    • A. 

      76cm of Hg

    • B. 

      1cm of Hg

    • C. 

      1mm of Hg

    • D. 

      1 micron of Hg

  • 7. 
    What is the charge of electron?
    • A. 

      1.6*10^-19

    • B. 

      =-1.6*10^-19

    • C. 

      0

    • D. 

      None

  • 8. 
    What is the spin of electron?
    • A. 

      0(h/2pi)

    • B. 

      (1/2)(h/2pi)

    • C. 

      H/(2pi)

    • D. 

      None

  • 9. 
    What Statistics is followed by electron?
    • A. 

      Bose-Einstein

    • B. 

      Fermi-Dirac

    • C. 

      Gaussian

    • D. 

      None

  • 10. 
    What are the no. Of elements in a Diode?
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4

  • 11. 
    What is the function of filament in a VT?
    • A. 

      No function

    • B. 

      To cause thermionic emission

    • C. 

      To cause photo-ionic emission

    • D. 

      To cause high field emission

  • 12. 
    What is the function of Cathode in VT?
    • A. 

      No function

    • B. 

      To emit electrons

    • C. 

      To capture electrons

    • D. 

      To suppress electrons

  • 13. 
    What is the function of Anode in VT?
    • A. 

      No function

    • B. 

      To emit electrons

    • C. 

      To capture electrons

    • D. 

      To suppress electrons

  • 14. 
    What is the number of electrodes in Pentode
    • A. 

      5

    • B. 

      4

    • C. 

      3

    • D. 

      2

  • 15. 
    What is the number of electrodes in TRIODE
    • A. 

      2

    • B. 

      3

    • C. 

      4

    • D. 

      5

  • 16. 
    What is the number of electrodes in TETRODE
    • A. 

      2

    • B. 

      3

    • C. 

      4

    • D. 

      5

  • 17. 
    What is the unit of resistance?
    • A. 

      Ohms

    • B. 

      Henry

    • C. 

      Farad

    • D. 

      Radians

  • 18. 
    What is the unit of current?
    • A. 

      Coulombs

    • B. 

      Coul/sec=Ampere

    • C. 

      Volt

    • D. 

      Ohms

  • 19. 
    What is the unit of capacitance ?
    • A. 

      Ohms

    • B. 

      Henry

    • C. 

      Farad

    • D. 

      Radians

  • 20. 
    What is the unit of Inductor ?
    • A. 

      Ohms

    • B. 

      Henry

    • C. 

      Farad

    • D. 

      Radians

Back to Top Back to top