Physical electronics devices and ics miscellaneous

Physical electronics devices and ics miscellaneous

Easy Questions

Physical Electronics Devices and ICs

Physical electronics devices and ics miscellaneous
  1. In a p-n junction at zero bias, the equilibrium current is—








  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: C

    NA

  1. For a forward bias pn-junction diode, diffusion capacitance varies—








  1. View Hint View Answer Discuss in Forum

    For a forward bias pn-junction diode, diffusion capacitance is given by

    CD =
    eI
    VT

    i.e. CD I
    Thus, we can say that for a forward bias pn-junction diode, diffusion capacitance varies linearly with forward current.

    Correct Option: A

    For a forward bias pn-junction diode, diffusion capacitance is given by

    CD =
    eI
    VT

    i.e. CD I
    Thus, we can say that for a forward bias pn-junction diode, diffusion capacitance varies linearly with forward current.

  1. The diference between a hole and a electron is that hole—








  1. View Hint View Answer Discuss in Forum

    The difference between a hole and a electron is that hole always remains in the valence band.

    Correct Option: D

    The difference between a hole and a electron is that hole always remains in the valence band.

  1. A Clipper circuit always—








  1. View Hint View Answer Discuss in Forum

    A clipper circuit always clipps some part.

    Correct Option: D

    A clipper circuit always clipps some part.

  1. Match and select the correct answer using codes: List-I
    (a) Intrinsic semiconductor
    (b) p-type semiconductor
    (c) n-type semiconductor
    (d) Extrinsic semiconductor
    List-II
    1. Acceptor type of impurity is added to semiconductor.
    2. Donar type of impurity is added to semiconductor.
    3. Doped semiconductor.
    4. Electrical properties are same as that of the pure semiconductor.








  1. View Hint View Answer Discuss in Forum

    ● Intrinsic semiconductor — Electrical properties are same as that of pure semiconductor
    ● p-type semiconductor — Acceptor type of impurity is added to semiconductor
    ● n-type semiconductor — Donar type of impurity is added to semiconductor
    ● Extrinsic semiconductor — Doped semiconductor

    Correct Option: A

    ● Intrinsic semiconductor — Electrical properties are same as that of pure semiconductor
    ● p-type semiconductor — Acceptor type of impurity is added to semiconductor
    ● n-type semiconductor — Donar type of impurity is added to semiconductor
    ● Extrinsic semiconductor — Doped semiconductor