Analog circuits miscellaneous


Analog circuits miscellaneous

  1. In an FET as VGS is changed from zero to increasing reverse bias, the value of gm









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    NA

    Correct Option: B

    NA


  1. For the clamping network shown below, resulting output for the applied input will be










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    NA

    Correct Option: B

    NA



  1. The transistor in the circuit shown is operating in










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    From the figure,

    IB =
    5 - VBE
    =
    4.2
    = 4.2 mA
    100 K100 K

    Ic =
    4.8
    mA
    5

    Since (IB)min =
    Ic
    ≤ IB ,
    hFE

    hence the transistor will operate in saturation region.

    Correct Option: C

    From the figure,

    IB =
    5 - VBE
    =
    4.2
    = 4.2 mA
    100 K100 K

    Ic =
    4.8
    mA
    5

    Since (IB)min =
    Ic
    ≤ IB ,
    hFE

    hence the transistor will operate in saturation region.


  1. Three different circuits for biasing junction transistor amplifiers are given below

    The correct decreasing order of preference of these circuits fr om the point of view of bias stabilisation is









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    NA

    Correct Option: C

    NA



  1. The MOSFET swit ch in it s on-st at e may be considered equivalent to









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    MOSFET switch in ON state is equivalent to a capacitor.

    Correct Option: C

    MOSFET switch in ON state is equivalent to a capacitor.