Electronics & Communication Quiz - 2
This is a very elementary Quiz containing questions from Solid State Devices, Basic Electronics, etc
- 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
Questions: 20 | Attempts: 29 | Last updated: Feb 7, 2020
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