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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 pinch-off voltage is the drain voltage on the shorted gate drain curve above which the drain current becomes

    2. A.
    almost negligible
    B.
    very high
    C.
    almost constant
    D.
    highly variable

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  2. Which of the following plot can be used to show the input volt-ampere characteristics of a common-emitter configuration?

    3. A.
    VBE versus iB for constant values of VCE
    B.
    VCE versus iC for constant values of IB
    C.
    VCE versus iC for constant values of IE
    D.
    None of the above

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  3. A transconductance amplifier has

    4. A.
    high input impedance and low output impedance
    B.
    low input impedance and high output impedance
    C.
    high input and output impedance
    D.
    low input and output impedance

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  4. The signal input to a given amplifier is made up of 100 mΩ signal power and 1 mΩ noise power. The amplifier contributes an additional 100 mΩ of noise and has a power gain of 20 dB. The output signal-to-noise ratio is

    5. A.
    100
    B.
    50
    C.
    10
    D.
    5

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  5. In order to protect a MOSFET against damage from any stray voltage at the gate

    6. A.
    grounding rings are provided
    B.
    terminals are shorted
    C.
    source terminal is earthed during transit
    D.
    none of these

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  6. A capacitor input filter relies on

    7. A.
    average detection
    B.
    peak detection
    C.
    both (a) and (b)
    D.
    neither (a) nor (b)

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  7. RECTIFIER : OSCILLATOR ::

    8. A.
    Capacitance : Inductance
    B.
    Series resonance : Parallel resonance
    C.
    DC : AC
    D.
    Regulation : Efficiency

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  8. A voltage doubler circuit uses

    9. A.
    two diodes
    B.
    two capacitors
    C.
    two diodes and two capacitors
    D.
    none of the above

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  9. Which amplifier will be preferred for highest gain?

    10. A.
    Darlington's pair
    B.
    Single stage amplifier
    C.
    Cascade amplifier
    D.
    Depends on the circuitry

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  10. Which of the following are synonymous?

    11. A.
    MOSFET and IGEFT
    B.
    FET and JFET
    C.
    JFET and MOSFET
    D.
    P-N-P and N-P-N

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