BJT and FET Frequency Response Questions and Answers

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Showing 10 of 26 questions
Q21
Which of the following statements is true for a square-wave signal?
  • A It is composed of both even and odd harmonics.
  • B It is composed only of odd harmonics.
  • C It is composed only of even harmonics.
  • D The harmonics waveforms are also square waves.
Answer: Option B
Q22
A change in frequency by a factor of ________ is equivalent to 1 decade.
  • A 2
  • B 10
  • C 5
  • D 20
Answer: Option B
Q23
In the input RC circuit of a single-stage BJT, by how much does the base voltage lead the input voltage for frequencies much larger than the cutoff frequency in the low-frequency region?
  • A About 0º
  • B 45º
  • C About 90º
  • D None of the above
Answer: Option A
Q24
In the ________-frequency region, the capacitive elements of importance are the interelectrode (between terminals) capacitances internal to the active device and the wiring capacitance between the leads of the network.
  • A low
  • B mid
  • C high
  • D [NIL]
Answer: Option C
Q25
What is the ratio of the output power to the input power at the cutoff frequencies in a normalized frequency response plot?
  • A 0.25
  • B 0.50
  • C 0.707
  • D 1
Answer: Option B
Q26
Single-element semiconductors are characterized by atoms with ____ valence electrons.
  • A 3
  • B 4
  • C 5
  • D 2
Answer: Option B

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