Electronic Devices and Circuits MCQs | Page - 52

Dear candidates you will find MCQ questions of Electronic Devices and Circuits here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.

V

Vikash Gupta • 33.56K Points
Instructor I

Q. When an input signal reduces the channel size, the process is called ?

  • (A) enhancement
  • (B) substrate connecting
  • (C) gate charge
  • (D) depletion
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V

Vinay • 28.75K Points
Instructor II

Q. In a JFET, gates are always ?

  • (A) Unbiased
  • (B) Reverse biased
  • (C) Either forward or reverse biased
  • (D) Forward biased
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R

Rakesh Kumar • 28.44K Points
Instructor II

Q. How will electrons flow through a p-channel JFET ?

  • (A) from source to drain
  • (B) from source to gate
  • (C) from drain to gate
  • (D) from drain to source
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S

Sandhya Thakur • 4.08K Points
Extraordinary

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

  • (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
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P

Pooja • 4.41K Points
Extraordinary

Q. For an n-channel FET, What is the direction of current flow ?

  • (A) Source to drain
  • (B) Drain to source
  • (C) Gate to source
  • (D) Gate to drain
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V

Vinay • 28.75K Points
Instructor II

Q. When applied input voltage varies the resistance of a channel, the result is called ?

  • (A) saturization
  • (B) polarization
  • (C) cut-off
  • (D) field effect
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K

Kiran Rapria • 4.26K Points
Extraordinary

Q. The main disadvantage of a JFET is ?

  • (A) Low gain-band width product
  • (B) Low gain
  • (C) High cost
  • (D) High noise level
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R

Ritu Nagar • 4.39K Points
Extraordinary

Q. What is the input impedance of a common-gate configured JFET ?

  • (A) very low
  • (B) low
  • (C) high
  • (D) very high
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B

Bhagwan Das • 4.44K Points
Extraordinary

Q. The gate input current of a FET is of the order of ?

  • (A) Amperes
  • (B) Microamperes
  • (C) Miliamperes
  • (D) Hundreds of nano amperes
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