Electronic Devices and Circuits MCQs with answers Page - 50

Here, you will find a collection of MCQ questions on Electronic Devices and Circuits. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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A

Admin • 833.24K Points
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Q. Saturation region of a JFET is also known as ......... region ?

  • (A) Pinch off
  • (B) Analog
  • (C) Source
  • (D) Ohmic

A

Admin • 833.24K Points
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Q. When the JFET is no longer able to control the current, this point is called the ?

  • (A) breakdown region
  • (B) depletion region
  • (C) saturation point
  • (D) pinch-off region

A

Admin • 833.24K Points
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Q. The transconductance of FET depends upon ?

  • (A) Drain supply
  • (B) The type of FET
  • (C) Gate to source voltage
  • (D) Gate current

A

Admin • 833.24K Points
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Q. For a p-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

A

Admin • 833.24K Points
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Q. A very simple bias for a D-MOSFET is called ?

  • (A) self biasing
  • (B) gate biasing
  • (C) zero biasing
  • (D) voltage-divider biasing

A

Admin • 833.24K Points
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Q. JFETs cascode means ?

  • (A) Two FETs connected in parallel
  • (B) A common gate driving a common source connection
  • (C) A common gate source driving a common gate connection
  • (D) None of the above

A

Admin • 833.24K Points
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Q. How will a D-MOSFET input impedance change with signal frequency ?

  • (A) As frequency increases input impedance increases
  • (B) As frequency increases input impedance is constant
  • (C) As frequency decreases input impedance increases
  • (D) As frequency decreases input impedance is constant

A

Admin • 833.24K Points
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Q. The voltage gain of casade amplifier using FET is ?

  • (A) Product of two voltage gains
  • (B) Equal to C.D amplifier
  • (C) Almost equal to C.S amplifier
  • (D) None of the above

A

Admin • 833.24K Points
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Q. A MOSFET has how many terminals ?

  • (A) 2 or 3
  • (B) 3
  • (C) 4
  • (D) 3 or 4

A

Admin • 833.24K Points
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Q. With a JFET, a ratio of output current change against an input voltage change is called ?

  • (A) transconductance
  • (B) siemens
  • (C) resistivity
  • (D) gain

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