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Analog Electronics problems

  • 1. The output V0 in figure is
    Electronics and Communication Engineering Analog Electronics: The output V0 in figure is

  • Options
  • A. -100 V
  • B. -100 mV
  • C. 10 V
  • D. 10 mV
    • Discuss
  • 2. DC amplifiers have a tendency to be unstable.

  • Options
  • A. True
  • B. False
    • Discuss
  • 3. Study the circuit of figure and examine the following statements
    Electronics and Communication Engineering Analog Electronics: Study the circuit of figure and examine the following statements

    1. It is an active low pass finer.
    2. It is a second order filter.
    3. The change in gain is 40 dB/decade.
    Which of the above statements are correct?

  • Options
  • A. 1, 2 and 3
  • B. 1 and 2
  • C. 1 and 3
  • D. 2 and 3
    • Discuss
  • 4. The 'h' parameters of the circuit shown in the figure are hib = 25 ?, hfb = 0.999 and hob = 10-6? The Voltage gain is
    Electronics and Communication Engineering Analog Electronics: The 'h' parameters of the circuit shown in the figure are hib = 25 ?

  • Options
  • A. 0.99
  • B. 1.98
  • C. 2.0
  • D. 4
    • Discuss
  • 5. A forward voltage of 9 V is applied to a diode in series with a 1 k? load resistor. The voltage across load resistor is zero. It indicates that

  • Options
  • A. diode is short circuited
  • B. diode is open circuited
  • C. resistor is open circuited
  • D. diode is either short circuited or open circuited
    • Discuss
  • 6. To prevent a DC return between source and load, it is necessary to use

  • Options
  • A. resistor between source and load
  • B. inductor between source and load
  • C. capacitor between source and load
  • D. either (a) or (b)
    • Discuss
  • 7. The self bias provides

  • Options
  • A. stable Q point
  • B. large voltage gain
  • C. high input impedance
  • D. high base current
    • Discuss
  • 8. The quiescent collector current IC, and collector to emitter voltage VCE in a CE connection are the values when

  • Options
  • A. ac signal is zero
  • B. ac signal is low
  • C. ac signal is negative
  • D. either (a) or (b)
    • Discuss
  • 9. Figure shows the self bias circuit for CE amplifier and its equivalent circuit. VBB and RB respectively are
    Electronics and Communication Engineering Analog Electronics: Figure shows the self bias circuit for CE amplifier and its equivalent circuit. VBB and R

  • Options
  • A. 10 V and 4 k ohm
  • B. 5 V and 4 k ohm
  • C. 2 V and 4 k ohm
  • D. 2 V and 10 k ohm
    • Discuss
  • 10. In a circuit of figure, Vs = 10 cos(?t) power drawn by the 2? resistor is 4 watts. The power factor is
    Electronics and Communication Engineering Analog Electronics: In a circuit of figure, Vs = 10 cos(?t) power drawn by the 2? resistor is 4

  • Options
  • A. 0.3
  • B. 0.4
  • C. 0.6
  • D. none
    • Discuss

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