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ECE :: Analog Electronics

  1. CE mode input V-I characteristic can be shown by a plot of

  2. A.
    VBE versus iB for constant values of VCE
    B.
    VCB versus iC for constant values of IE
    C.
    VCE versus iE for constant values of VEB
    D.
    VCE versus iE for constant values of VCE

  3. n-channel MOS is

  4. A.
    slower than p-channel MOS
    B.
    faster than p-channel MOS
    C.
    same as p-channel MOS
    D.
    none of these

  5. Which of the following compensation method in amplifier can be used to reduce the bandwidth?

  6. A.
    Pole-zero compensation
    B.
    Dominant pole compensation
    C.
    Lead compensation
    D.
    Any of the above

  7. A push pull amplifier balance out

  8. A.
    odd harmonics
    B.
    even harmonics
    C.
    both odd as well as even harmonics
    D.
    neither odd nor even harmonics

  9. In a half wave rectifier, Vrms is

  10. A.
    B.
    C.
    D.
    None of these

  11. If the thermal resistance of a transistor is lower it means

  12. A.
    higher junction temperature
    B.
    lower junction temperature
    C.
    higher or lower junction temperature depending on circuit conditions
    D.
    higher or lower junction temperature depending on transistor

  13. A Darlington pair has β = 300. If RE = 1 kΩ and RL = 100 Ω, the input impedance at the base is approximately

  14. A.
    300 k ohm
    B.
    3 k ohm
    C.
    100 k ohm
    D.
    30 k ohm

  15. Barkhausen criterion is 1 + Avβ = 0.

  16. A.
    True
    B.
    False

  17. The voltage gain of which transistor configuration is less than unity?

  18. A.
    CB
    B.
    CE
    C.
    CC
    D.
    None

  19. Linear transistor circuits always operate in

  20. A.
    saturation region
    B.
    cut off region
    C.
    active region
    D.
    passive region