Analog electronics circuits miscellaneous


Analog electronics circuits miscellaneous

Analog Electronic Circuits

  1. The output resistance of a common base transistor circuit is of the order of:









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    NA

    Correct Option: C

    NA


  1. The input resistance of a common base transistor circuit is of the order of:









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    NA

    Correct Option: B

    NA



  1. Potential barrier acts as an barrier against the flow of:









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    Potential barrier acts as barrier against the flow of electrons from n-side to p-side and holes from p-side to n-side.

    Correct Option: C

    Potential barrier acts as barrier against the flow of electrons from n-side to p-side and holes from p-side to n-side.


  1. The forward resistance of the diode shown below is 5 Ω and the remaining parameters are same as those of an ideal diode. The dc component of the source current is:











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    Give that rf = 5 Ω, RL = 45 Ω
    Here the diode acts as
    a Half wave rectifier.

    Idc =
    Vm
    π ( RL + rf )

    or Idc =
    Vm
    π ( 45 + 5 )

    or Idc =
    Vm
    50 π


    Correct Option: A

    Give that rf = 5 Ω, RL = 45 Ω
    Here the diode acts as
    a Half wave rectifier.

    Idc =
    Vm
    π ( RL + rf )

    or Idc =
    Vm
    π ( 45 + 5 )

    or Idc =
    Vm
    50 π




  1. Thermal runaway in a transistor biased in the active region is due to:









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    Thermal runaway in a transistor biased in the active region is due to change in reverse saturation current due to rise in temperature.

    Correct Option: D

    Thermal runaway in a transistor biased in the active region is due to change in reverse saturation current due to rise in temperature.