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Home ‣ Electronics ‣ Field Effect Transistors (FET) Comments
  • Question

  • IDSS can be defined as:


  • Options
  • A. the minimum possible drain current
  • B. the maximum possible current with VGS held at ?4 V
  • C. the maximum possible current with VGS held at 0 V
  • D. the maximum drain current with the source shorted

  • Correct Answer
  • the maximum possible current with VGS held at 0 V 

    • Field Effect Transistors (FET) problems

    Search Results

    • 1. In an n-channel JFET, what will happen at the pinch-off voltage?

    • Options
    • A. the value of VDS at which further increases in VDS will cause no further increase in ID
    • B. the value of VGS at which further decreases in VGS will cause no further increases in ID
    • C. the value of VDG at which further decreases in VDG will cause no further increases in ID
    • D. the value of VDS at which further increases in VGS will cause no further increases in ID
      • Discuss
    • 2. 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
    • 3. When an input signal reduces the channel size, the process is called:

    • Options
    • A. enhancement
    • B. substrate connecting
    • C. gate charge
    • D. depletion
      • Discuss
    • 4. 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
    • 5. 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
    • 6. A "U" shaped, opposite-polarity material built near a JFET-channel center is called the:

    • Options
    • A. gate
    • B. block
    • C. drain
    • D. heat sink
      • Discuss
    • 7. What is the input impedance of a common-gate configured JFET?

    • Options
    • A. very low
    • B. low
    • C. high
    • D. very high
      • Discuss
    • 8. With the E-MOSFET, when gate input voltage is zero, drain current is:

    • Options
    • A. at saturation
    • B. zero
    • C. IDSS
    • D. widening the channel
      • Discuss
    • 9. Which type of JFET bias requires a negative supply voltage?

    • Options
    • A. feedback
    • B. source
    • C. gate
    • D. voltage divider
      • Discuss
    • 10. Which component is considered to be an "OFF" device?

    • Options
    • A. transistor
    • B. JFET
    • C. D-MOSFET
    • D. E-MOSFET
      • Discuss

    Comments

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