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

  • In a BJT, the collector current is approximately equal to the base current.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • False 

    • Bipolar Junction Transistors (BJT) problems

    Search Results

    • 1. 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
    • 2. This is a PNP transistor.


    • Options
    • A. True
    • B. False
      • Discuss
    • 3. The voltage gain of a transistor is inversely proportional to the change in output current.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. The polarity of VBE is such that it reverse biases the base-emitter junction.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. When a transistor is operating as a variable resistor it has transistance.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. 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
    • 7. 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
    • 8. The signal voltage gain of an amplifier, AV, is defined as __________.

    • Options
    • A.
    • B. AV = IC x RC
    • C.
    • D.
      • Discuss
    • 9. 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
    • 10. VCE approximately equals ________ when a transistor switch is in saturation.

    • Options
    • A. VC
    • B. VB
    • C. 0.3 V
    • D. 0.7 V
      • Discuss

    Comments

    Avatar
    Ebissa
    very smart
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