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Field Effect Transistors (FET) problems

  • 1. When not in use, MOSFET pins are kept at the same potential through the use of:

  • Options
  • A. shipping foil
  • B. nonconductive foam
  • C. conductive foam
  • D. a wrist strap
    • Discuss
  • 2. Using voltage-divider biasing, what is the voltage at the gate VGS?

    Electronics Field Effect Transistors (FET): Using voltage-divider biasing, what is the voltage at the gate VGS?

  • Options
  • A. 5.2 V
  • B. 4.2 V
  • C. 3.2 V
  • D. 2.2 V
    • Discuss
  • 3. The type of bias most often used with E-MOSFET circuits is:

  • Options
  • A. constant current
  • B. drain-feedback
  • C. voltage-divider
  • D. zero biasing
    • Discuss
  • 4. When VGS = 0 V, a JFET is:

  • Options
  • A. saturated
  • B. an analog device
  • C. an open switch
  • D. cut off
    • Discuss
  • 5. When applied input voltage varies the resistance of a channel, the result is called:

  • Options
  • A. saturization
  • B. polarization
  • C. cutoff
  • D. field effect
    • Discuss
  • 6. Which JFET configuration would connect a high-resistance signal source to a low-resistance load?

  • Options
  • A. source follower
  • B. common-source
  • C. common-drain
  • D. common-gate
    • Discuss
  • 7. What is the transconductance of an FET when △ID = 1 mA and △VGS = 1 V?

  • Options
  • A. 1 kS
  • B. 1 mS
  • C. 1 kΩ
  • D. 1 mΩ
    • Discuss
  • 8. In the constant-current region, how will the IDS change in an n-channel JFET?

  • Options
  • A. As VGS decreases ID decreases.
  • B. As VGS increases ID increases.
  • C. As VGS decreases ID remains constant.
  • D. As VGS increases ID remains constant.
    • Discuss
  • 9. When an input signal reduces the channel size, the process is called:

  • Options
  • A. enhancement
  • B. substrate connecting
  • C. gate charge
  • D. depletion
    • Discuss
  • 10. The overall input capacitance of a dual-gate D-MOSFET is lower because the devices are usually connected:

  • Options
  • A. in parallel
  • B. with separate insulation
  • C. with separate inputs
  • D. in series
    • Discuss

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