Electronic Devices and Circuit Theory- Semiconductor Diodes Questions and Answers

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Showing 10 of 27 questions
Q21
What is the value of the transition capacitance for a silicon diode when VD = 0? (Choose the best answer.)
  • A 1 pF
  • B 3 pF
  • C 5 pF
  • D 10 pF
Answer: Option B
Q22
Which of the following ratings is true?
  • A Si diodes have higher PIV and narrower temperature ranges than Ge diodes.
  • B Si diodes have higher PIV and wider temperature ranges than Ge diodes.
  • C Si diodes have lower PIV and narrower temperature ranges than Ge diodes.
  • D Si diodes have lower PIV and wider temperature ranges than Ge diodes.
Answer: Option B
Q23
The ideal diode is a(n) ________ circuit in the region of nonconduction.
  • A open
  • B short
Answer: Option A
Q24
Which capacitance dominates in the forward-bias region?
  • A Diffusion
  • B Transition
  • C Depletion
  • D None of the above
Answer: Option A
Q25
In what state is a silicon diode if the voltage drop across it is about 0.7 V?
  • A No bias
  • B Forward bias
  • C Reverse bias
  • D Zener region
Answer: Option B
Q26
What is the ratio of the capacitive reactance XCS to the input resistance RI of the input RC circuit of a single-stage BJT amplifier at the low-frequency cutoff?
  • A 0.25
  • B 0.50
  • C 0.75
  • D 1.0
Answer: Option D
Q27
Refer to Figure 9.19. Calculate at 0.5f1.
  • A 63.43º
  • B 26.56º
  • C 45º
  • D undefined
Answer: Option A

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