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Home ‣ Electronics ‣ Transistors and Applications Comments
  • Question

  • The collector current in a class A amplifier flows for ________ of the ac input signal.


  • Options
  • A. < 180°
  • B. 180°
  • C. < 360°
  • D. 360°

  • Correct Answer
  • 360° 

    • Transistors and Applications problems

    Search Results

    • 1. The power gain (Ap) of any transistor amplifier circuit equals the ___________.

    • Options
    • A. current gain squared
    • B. current gain times the voltage gain
    • C. voltage gain times the output resistance
    • D. current gain plus the voltage gain
      • Discuss
    • 2. If the drain, source, and channel of a MOSFET are all a p-type material, and it operates in both modes, this is an n-channel D-MOSFET.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. 

      The maximum peak-to-peak output voltage in the given circuit is 15 V.


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

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. In an n-type JFET, current will flow when a positive voltage is applied to the drain and a negative voltage is applied to the source.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. The ___ oscillator takes advantage of the piezoelectric effect.

    • Options
    • A. crystal
    • B. Hartley
    • C. Colpitts
    • D. RC
      • Discuss
    • 7. The ac input resistance (Rin) of a voltage-divider biased common-emitter amplifier consists of ____________.

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 8. VCE approximately equals _______ when a transistor is in saturation.

    • Options
    • A. VCC
    • B. VB
    • C. 0.2 V
    • D. 0.7 V
      • Discuss
    • 9. A(n) ___ has a conductive channel only when it is biased properly.

    • Options
    • A. p-channel JFET
    • B. n-channel D-MOSFET
    • C. p-channel D-MOSFET
    • D. n-channel E-MOSFET
      • Discuss
    • 10. Changing ________ can control the voltage gain of a common-source amplifier.

    • Options
    • A. the input voltage
    • B. gm
    • C. VDD
    • D. RS
      • Discuss

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