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ECE :: Analog Electronics

Analog Electronics - Section 1
Analog Electronics - Section 2
Analog Electronics - Section 3
Analog Electronics - Section 4
Analog Electronics - Section 5
Analog Electronics - Section 6
Analog Electronics - Section 7
Analog Electronics - Section 8
Analog Electronics - Section 9
Analog Electronics - section-1
Analog Electronics - Section 10
Analog Electronics - Section 11
Analog Electronics - Section 12
Analog Electronics - Section 13
Analog Electronics - Section 14
Analog Electronics - Section 15
Analog Electronics - Section 16
Analog Electronics - Section 17
Analog Electronics - Section 18
Analog Electronics - Section 19
Analog Electronics - Section 20
Analog Electronics - Section 21
Analog Electronics - section-22
Analog Electronics - Section-23

  1. The changes in ambient temperature affect the open loop gain of amplifier.

    2. A.
    True
    B.
    False

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  2. In a JFET, the lower end is called the __________ and the upper end is called the __________ .

    3. A.
    source, channel
    B.
    channel, drain
    C.
    source, drain
    D.
    drain source

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  3. A semi-conductor device that behaves like two SCRs is

    4. A.
    UJT
    B.
    MOSFET
    C.
    JFET
    D.
    TRIAC

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  4. As compared to a BJT amplifier circuit, a JFET amplifier circuit

    5. A.
    has low input impedance
    B.
    has high input impedance
    C.
    has very low input impedance
    D.
    may have either low or high input impedance

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  5. In an oscillator the total phase shift around the loop must be

    6. A.
    180°
    B.
    90°
    C.
    270°
    D.
    0°

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  6. Which of the following parameters of CE circuit has the unit of ohms?

    7. A.
    hie
    B.
    hre
    C.
    hfe
    D.
    hoe

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  7. In the op-amp circuit shown in figure the current through load resistance RL is

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  8. Whenever a JFET operates above pinch-off voltage

    9. A.
    depletion regions become smaller
    B.
    drain current increase steeply
    C.
    drain current starts decreasing
    D.
    drain current remains nearly constant

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  9. A Weinbridge oscillator is a

    10. A.
    VHF oscillator
    B.
    RF oscillator
    C.
    microwave oscillator
    D.
    audio frequency oscillator

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  10. RC network shown in the given figure can provide a maximum theoretical phase shift of

    11. A.
    90°
    B.
    180°
    C.
    270°
    D.
    360°

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