Transition Capacitance MCQ

Test your knowledge with important Transition Capacitance MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Transition Capacitance MCQs at Bissoy

• Capacitance per unit area at no reverse bias is 2 pF/cm2. For a step graded diode of area 5cm2, what is net capacitance at 99 V reverse bias voltage?
  ক

  2pF

  খ

  5pF

  গ

  0.1pF

  ঘ

  1pF
• The transition capacitance depends on the forward current of the diode.
  ক

  True

  খ

  False
• Which of these is the odd one in the choices?
  ক

  Transition capacitance

  খ

  Diffusion capacitance

  গ

  Space charge capacitance

  ঘ

  Depletion layer capacitance
• A diode had a transition capacitance of 1pF and depletion width of 1 µm. The capacitance changes to 10 pF when the depletion width changes. The final depletion width is __________
  ক

  10 µm

  খ

  0.1 µm

  গ

  1 µm

  ঘ

  100 µm
• A diode is replaced with another diode of different material. The ratio of relative permittivity of new material to old is 0.5. The initial capacitance was 20pF, then final capacitance will be __________
  ক

  15pF

  খ

  20pF

  গ

  10pF

  ঘ

  2pF
• For a diode the transition capacitance was 15pF. The diode is replaced with another diode of same material with twice cross sectional area. Terminal voltage remains unchanged. The capacitance of new diode is __________
  ক

  15pF

  খ

  30pF

  গ

  60pF

  ঘ

  7.5pF
• For a diode the transition capacitance was 10pF. The depletion width changed from 1µm to 10 µm. All other conditions remain unchanged. The new diode capacitance is __________
  ক

  5pF

  খ

  1.414pF

  গ

  1pF

  ঘ

  10pF
• What is the dependence of the transition capacitance on relative permittivity?
  ক

  Inversely proportional to relative permittivity

  খ

  Directly proportional to relative permittivity

  গ

  Independent of relative permittivity

  ঘ

  Directly proportional to relative permittivity with a degree of 2
• As reverse bias voltage increases transition capacitance __________
  ক

  Increases

  খ

  Decreases

  গ

  Doesn’t depend upon voltage

  ঘ

  Constant
• Transition capacitance of a diode is inversely proportional to __________
  ক

  Area of cross section

  খ

  Width of depletion region

  গ

  Relative permittivity

  ঘ

  Drift current
• Transition capacitance of a diode is directly proportional to ____________
  ক

  Area of cross section

  খ

  Width of depletion region

  গ

  Reverse voltage applied across the terminals

  ঘ

  Drift current
• Which of the following is not known as transition capacitance?
  ক

  Junction capacitance

  খ

  Space-Charge capacitance

  গ

  Diffusion capacitance

  ঘ

  Barrier capacitance