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TUNNEL DIODE MCQs

Total Questions : 20 | Page 1 of 2 pages
Question 1. The tunneling phenomenon is also known as
  1.    Esaki phenomena
  2.    Auto electric phenomenon
  3.    Auto electronic phenomenon
  4.    Bulk semiconductor phenomenon
 Discuss Question
Answer: Option C. -> Auto electronic phenomenon
Question 2. The Tunnel diode is best suited for
  1.    Rectifiers
  2.    Oscillators
  3.    Amplifiers
  4.    Amplitude limiters
 Discuss Question
Answer: Option C. -> Amplifiers
Question 3. Tunnel diode operates very fast in the ………
  1.    Gamma frequency region
  2.    Radiofrequency region
  3.    Microwave frequency region
  4.    Ultraviolet frequency region
 Discuss Question
Answer: Option C. -> Microwave frequency region
Question 4. In the construction of tunnel diode, why is the pellet soldered to anode contact and a tiny dot to the cathode contact via a mesh screen?
  1.    For heat dissipation and reduce induction respectively
  2.    For heat dissipation and increase conduction respectively
  3.    For better conduction and reduce inductance respectively
  4.    For better conduction and reduce inductance respectively
 Discuss Question
Answer: Option A. -> For heat dissipation and reduce induction respectively
Question 5. What are the materials used to make the Tunnel diode?
  1.    Algae's
  2.    AlGaInP
  3.    ZnTe
  4.    Silicon and germanium materials
 Discuss Question
Answer: Option D. -> Silicon and germanium materials
Question 6. Which among the following is the reason for the depletion layer of the tunnel diode to be very small?
  1.    Dopants are high and it is abrupt
  2.    It’s used at very high-frequency ranges
  3.    It’s used at very high-frequency ranges
  4.    Tunneling effect
 Discuss Question
Answer: Option A. -> Dopants are high and it is abrupt
Question 7. The tunneling involves
  1.    Acceleration of electron in p side
  2.    Positive slope characteristic of the diode
  3.    Movement of electrons from the n-side of the conduction band to the p-side of the valance band
  4.    Charge distribution management in both the bands
 Discuss Question
Answer: Option C. -> Movement of electrons from the n-side of the conduction band to the p-side of the valance band
Question 8. For a tunnel diode, when p is the probability that the carrier crosses the barrier ‘W’ is the width ‘e’ is energy
  1.    p ∝ 1/e(-A*e*w)
  2.    p ∝ e(-A*e*w)
  3.    p ∝ 1/e(A*e*w)
  4.    p ∝ e(A*e*w)
 Discuss Question
Answer: Option B. -> p ∝ e(-A*e*w)
Question 9. A tunnel diode is also called ____?
  1.    Eskari diode
  2.    PN diode
  3.    Zener diode
  4.    Pin diode
 Discuss Question
Answer: Option A. -> Eskari diode
Question 10. The tunnel diode is mainly used
  1.    To control the power
  2.    For rectification
  3.    For fact chopping
  4.    For very high speed of switching
 Discuss Question
Answer: Option D. -> For very high speed of switching

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