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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 properties of FETs resemble closely to

    2. A.
    UJT
    B.
    current transformer
    C.
    thyristor
    D.
    thermionic valves

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  2. The source of the harmonic distortion in a RC coupled transistor amplifier is usually

    3. A.
    power supply
    B.
    capacitor
    C.
    R-C circuit
    D.
    transistor

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  3. Two transistors have same value of a but different gain (G) bandwidth (B) product. The transistors have similar geometry. However one of them is germanium and the other is silicon. The transistor with lower GB product

    4. A.
    is germanium
    B.
    is silicon
    C.
    may be either of two
    D.
    cannot be identified on the basis of above data

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  4. Which distortion is least objectionable in case of audio amplifiers?

    5. A.
    Phase distortion
    B.
    Frequency distortion
    C.
    Harmonic distortion
    D.
    Inter-modulation distortion

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  5. In a single stage differential amplifier, the output offset voltage is mainly dependent on the mismatch of

    6. A.
    VBE, IB and β
    B.
    VBE and IB
    C.
    IB and β
    D.
    VBE and β

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  6. A delay equalizer is a

    7. A.
    low pass filter
    B.
    band pass filter
    C.
    all pass filter
    D.
    high pass filter

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  7. A cascade amplifier stage is equivalent to

    8. A.
    common emitter stage followed by a common base stage
    B.
    common base stage followed by an emitter follower
    C.
    an emitter follower stage followed by a common base stage
    D.
    a common base stage followed by a common emitter stage

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  8. Which one of the following devices is not used as the controller in a stabilizer?

    9. A.
    DIAC
    B.
    TRIAC
    C.
    SCR
    D.
    Power transistor

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  9. The disadvantage of transformer coupling in amplifier is

    10. A.
    cost of transformer at audio frequencies
    B.
    size of transformer at audio frequencies
    C.
    size of transformer at radio frequencies
    D.
    cost and size of transformer at audio frequencies

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  10. For an I/p of Vs = 5 sin ωt (assuming ideal diode), circuit shown in the figure will behave as a

    11. A.
    clipper, sine wave clipped at -2 V
    B.
    clamper, sine wave clamped at -2 V
    C.
    clamper, sine wave clamped at 0 volts
    D.
    clipper, sine wave clipped at 2 V

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