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  • Question

  • An amplifier has a large ac input signal. The clipping occurs on both the peaks. The output voltage will be nearly a


  • Options
  • A. sine wave
  • B. square wave
  • C. triangular wave
  • D. (a) or (c)

  • Correct Answer
  • square wave 

    Explanation
    When a sinusoidal voltage is clipped on both sides it resembles a square wave.

    Analog Electronics problems

    Search Results

    • 1. In a BJT circuit a pnp transistor is replaced by npn transistor. To analyse the new circuit

    • Options
    • A. all calculations done earlier have to be repeated
    • B. replace all calculated voltages by reverse values
    • C. replace all calculated currents by reverse values
    • D. replace all calculated voltages and currents by reverse values
      • Discuss
    • 2. In a circuit of figure, Vs = 10 cos(?t) power drawn by the 2? resistor is 4 watts. The power factor is

    • Options
    • A. 0.3
    • B. 0.4
    • C. 0.6
    • D. none
      • Discuss
    • 3. Figure shows the self bias circuit for CE amplifier and its equivalent circuit. VBB and RB respectively are

    • 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
    • 4. 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
    • 5. The self bias provides

    • Options
    • A. stable Q point
    • B. large voltage gain
    • C. high input impedance
    • D. high base current
      • Discuss
    • 6. If an amplifier with gain of - 1000 and feedback factor ? = - 0.1 had a gain change of 20% due to temperature, the change in gain of the feedback amplifier would be

    • Options
    • A. 10%
    • B. 5%
    • C. 0.2%
    • D. 0.01%
      • Discuss
    • 7. In the op-amp circuit of figure, V0 =

    • Options
    • A. Vi
    • B. 3 Vi
    • C. 5 Vi
    • D. 0.5 Vi
      • Discuss
    • 8. To protect the diodes in a rectifier and capacitor input filter circuit it is necessary to use

    • Options
    • A. surge resistor
    • B. surge inductor
    • C. surge capacitor
    • D. both (a) and (b)
      • Discuss
    • 9. In figure v1 = 8 V and v2 = 4 V. Which diode will conduct?

    • Options
    • A. D2 only
    • B. D1 only
    • C. Both D1 and D2
    • D. Neither D1 nor D2
      • Discuss
    • 10. In figure ID = 4 mA. Then VS =

    • Options
    • A. 20 V
    • B. 4.4 V
    • C. 0.4 V
    • D. 0.44 V
      • Discuss

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