Electronic Devices and Circuits MCQs with answers Page - 6

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Q. Node analysis can be applied for

  • (A) planar networks
  • (B) non-planar networks
  • (C) both a & b
  • (D) electric networks

A

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Q. Mesh analysis is applicable for

  • (A) planar networks
  • (B) non-planar networks
  • (C) both a & b
  • (D) electric networks

A

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Q. The superposition theorem is applicable to

  • (A) voltage only
  • (B) current only
  • (C) current and voltage
  • (D) current, voltage and power

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Q. Kirchhoff’s current law is applicable only to

  • (A) junction in a network
  • (B) closed loops in a network
  • (C) electric circuits
  • (D) electronic circuits

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Q. Maximum power output is obtained from a network when the load resistance is equal to the output resistance of the network as seen from the terminals of the load". The above statement is associated with

  • (A) mill man’s theorem
  • (B) thevenins theorem
  • (C) superposition theorem
  • (D) maximum power transfer theorem

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Q. For normal operation of a pnp BJT, the base must be with respect to the emitter and with respect to the collector.

  • (A) positive, negative
  • (B) positive, positive
  • (C) negative, positive
  • (D) negative, negative

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Q. A transistor amplifier has a voltage gain of 100. If the input voltage is 75 mV, the output voltage is:

  • (A) 1.33 v
  • (B) 7.5 v
  • (C) 13.3 v
  • (D) 15 v

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Q. What is the order of doping, from heavily to lightly doped, for each region?

  • (A) base, collector, emitter
  • (B) emitter, collector, base
  • (C) emitter, base, collector
  • (D) collector, emitter, base

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Q. Which of the following is true for an npn or pnp transistor?

  • (A) ie = ib + ic
  • (B) ib = ic+ ie
  • (C) ic = ib + ie
  • (D) none of the above

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Q. In what range of voltages is the transistor in the linear region of its operation?

  • (A) 0 < vce
  • (B) 0.7 < vce < vce(max)
  • (C) vce(max) > vce
  • (D) none of the above

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