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Home ‣ Electronics ‣ Bipolar Junction Transistors (BJT) Comments
  • Question

  • The signal voltage gain of an amplifier, AV, is defined as __________.


  • Options
  • A. The signal voltage gain of an amplifier, AV, is defined as __________. AV = IC x RC
  • B. AV = IC x RC
  • C. The signal voltage gain of an amplifier, AV, is defined as __________. AV = IC x RC
  • D. The signal voltage gain of an amplifier, AV, is defined as __________. AV = IC x RC

  • Correct Answer
  •  

    • Bipolar Junction Transistors (BJT) problems

    Search Results

    • 1. Base bias provides _________.

    • Options
    • A. a very stable Q point
    • B. a very unstable Q point
    • C. no current gain
    • D. zero current in the base and collector circuits
      • Discuss
    • 2. When troubleshooting a bipolar junction transistor using an ohmmeter, if one of the junctions reads low in both directions, the junction is shorted and the transistor is bad. If one of the junctions reads high in both directions, the junction is shorted and the transistor is good.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. In a BJT, the collector current is approximately equal to the base current.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. The voltage measured from the collector to the emitter is the sum of the base-emitter voltage plus the collector-base voltage.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. This is a PNP transistor.


    • Options
    • A. True
    • B. False
      • Discuss
    • 6. The input resistance, Rin of a common-collector amplifier, consists of ____________.

    • Options
    • A. Rin = RE × AC Current Gain
    • B.
    • C. Rin = RE × ɑ
    • D. none of the above
      • Discuss
    • 7. VCE approximately equals ________ when a transistor switch is in saturation.

    • Options
    • A. VC
    • B. VB
    • C. 0.3 V
    • D. 0.7 V
      • Discuss
    • 8. An emitter-follower has a voltage gain that is __________.

    • Options
    • A. much less than one
    • B. approximately equal to one
    • C. greater than one
    • D. zero
      • Discuss
    • 9. VCE approximately equals ________ when a transistor switch is cut off.

    • Options
    • A. VCC
    • B. VB
    • C. 0.2 V
    • D. 0.7 V
      • Discuss
    • 10. The phase difference between the input and output ac voltage signals of a common-emitter amplifier is __________.

    • Options
    • A. 0º
    • B. 90º
    • C. 180º
    • D. 360º
      • Discuss

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