Electronic Devices and Circuits MCQs with answers Page - 7

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Q. What does DC vary with?

  • (A) ic
  • (B) ºc
  • (C) both ic and ºc
  • (D) ic’, but not ºc

A

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Q. What is (are) common fault(s) in a BJT-based circuit?

  • (A) pens or shorts internal to the transistor
  • (B) open bias resistor(s)
  • (C) external opens and shorts on the circuit board
  • (D) all of the above

A

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Q. What is (are) general-purpose/small-signal transistors case type(s)?

  • (A) to-18
  • (B) to-92
  • (C) to-39
  • (D) all of the above

A

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Q. Which of the following devices has the highest input resistance?

  • (A) diode
  • (B) jfet
  • (C) mosfet
  • (D) bipolar junction transistor

A

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Q. A self-biased n-channel JFET has a VD = 6 V. VGS = –3 V. Find the value of VDS.

  • (A) –3 v
  • (B) –6 v
  • (C) 3 v
  • (D) 6 v

A

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Q. A JFET data sheet specifies VGS(off) = –6 V and IDSS = 8 mA. Find the value of ID when VGS = –3 V.

  • (A) 2 ma
  • (B) 4 ma
  • (C) 8 ma
  • (D) none of the above

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Q. A JFET data sheet specifies VGS(off) = –10 V and IDSS = 8 mA. Find the value of ID when VGS = –3 V.

  • (A) 2 ma
  • (B) 1.4 ma
  • (C) 4.8 ma
  • (D) 3.92 ma

A

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Q. The JFET is always operated with the gate-source pn junction -biased.

  • (A) forward
  • (B) reverse
  • (C) all of the above
  • (D) none of the above

A

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Q. What type(s) of gate-to-source voltage(s) can a depletion MOSFET (D-MOSFET) operate with?

  • (A) zero
  • (B) positive
  • (C) negative
  • (D) any of the above

A

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Q. The has a physical channel between the drain and source.

  • (A) d-mosfet
  • (B) e-mosfet
  • (C) v-mosfet
  • (D) none of the above

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