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ECE :: Analog Electronics

  1. A transistor in CE mode is in saturation region. Then the collector is almost at

  2. A.
    ground potential
    B.
    a potential equal to VCC
    C.
    a potential equal to 0.5 VCC
    D.
    a potential equal to 2 VCC

  3. The semi-conductor type 2 N 34 indicates

  4. A.
    a n-channel MOSFET
    B.
    a JFET
    C.
    a diode with two electrodes
    D.
    a diode with three electrodes

  5. The emitter bias largely depends on

  6. A.
    gain
    B.
    signal input
    C.
    IE
    D.
    none of the above

  7. A limiter circuit can be built using a diode and resistance.

  8. A.
    True
    B.
    False

  9. In saturation region JFET acts like a

  10. A.
    bipolar device
    B.
    short circuit
    C.
    switch
    D.
    resistance

  11. Which of the following are difficult to be fabricated in a monolithic IC?

  12. A.
    Inductors
    B.
    Large capacitors
    C.
    Small capacitors
    D.
    Both (a) and (b)

  13. In an op-amp a common mode signal is applied to

  14. A.
    inverting terminal
    B.
    non-inverting terminal
    C.
    both terminals
    D.
    one or both the terminals

  15. The ripple factor of a full wave rectifier is about 0.5.

  16. A.
    True
    B.
    False

  17. Which of the following op-amp circuits has zero resistance in the feedback path?

  18. A.
    Inverting amplifier
    B.
    Summing amplifier
    C.
    Source follower
    D.
    Integrating amplifier

  19. In an LC filter, the ripple factor,

  20. A.
    increases with load current
    B.
    increases with load resistance
    C.
    remains constant with the load current
    D.
    has the lowest value