DC Biasing-FETs Questions and Answers

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Showing 10 of 14 questions
Q1
For the FET, the relationship between the input and output quantities is ________ due to the ________ term in Shockley's equation.
  • A nonlinear, cubed
  • B linear, proportional
  • C nonlinear, squared
Answer: Option C
Q2
Which of the following is (are) true of a self-bias configuration compared to a fixed-bias configuration?
  • A One of the dc supplies is eliminated.
  • B A resistor RS is added.
  • C VGS is a function of the output current ID.
  • D All of the above
Answer: Option D
Q3
The input controlling variable for a(n) ________ is a current level and a voltage level for a(n) ________.
  • A BJT, FET
  • B FET, BJT
  • C FET, FET
  • D BJT, BJT
Answer: Option A
Q4
Through proper design, a ________ can be introduced that will affect the biasing level of a voltage-controlled JFET resistor.
  • A photodiode
  • B thermistor
  • C laser diode
  • D Zener diode
Answer: Option B
Q5
On the universal JFET bias curve, the vertical scale labeled ________ can, in itself, be used to find the solution to ________ configurations.
  • A m, fixed-bias
  • B M, fixed-bias
  • C M, voltage-bias
  • D m, voltage-bias
Answer: Option A
Q6
Which of the following represents the voltage level of VGS in a self-bias configuration?
  • A VG
  • B VGS(off)
  • C VS
  • D VP
Answer: Option C
Q7
The self-bias configuration eliminates the need for two dc supplies.
  • A TRUE
  • B FALSE
Answer: Option A
Q8
Which of the following is a false statement regarding the dc load line when comparing self-bias and voltage-divider configurations?
  • A Both are linear lines.
  • B Both cross the origin.
  • C Both intersect the transfer characteristics.
  • D Both are obtained by writing Kirchhoff's voltage law (KVL) at the input side loop.
Answer: Option B
Q9
For the noninverting amplifier, one of the most important advantages associated with using a JFET for control is the fact that it is ________ rather than ________ control.
  • A dc, ac
  • B ac, dc
Answer: Option A
Q10
Depletion-type MOSFETs do not permit operating points with positive values of VGS and levels of ID that exceed IDSS.
  • A TRUE
  • B FALSE
Answer: Option B
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