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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. Which op-amp circuit uses a resistance in series with input and capacitor in feedback path?

    2. A.
    Differentiating amplifier
    B.
    Integrating amplifier
    C.
    Logarithmic amplifier
    D.
    Exponential amplifier

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  2. Saturation of iron core causes distortion.

    3. A.
    True
    B.
    False

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  3. Which of the following is non-sinusoidal oscillator?

    4. A.
    Multivibrator
    B.
    Relaxation oscillator using UJT
    C.
    Relaxation oscillator using tunnel diode
    D.
    Any of the above

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  4. Low gain-bandwidth product of a JFET is due to

    5. A.
    reduced number of holes
    B.
    junction capacitive effects
    C.
    low degree of isolation between input and output
    D.
    all of the above

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  5. The circuit of the figure is an example of feedback of the following type

    6. A.
    current series
    B.
    current shunt
    C.
    voltage series
    D.
    voltage shunt

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  6. Oscillation frequency in Wein bridge oscillator is

    7. A.
    B.
    C.
    f = 2p CR
    D.

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  7. Assertion (A): A class C amplifier can also be used as frequency multiplier

    Reason (R): When narrow current pulses drive a resonant circuit the output can be a near perfect sine wave

    8. A.
    Both A and R are correct and R is correct explanation for A
    B.
    Both A and R are correct but R is not correct explanation for A
    C.
    A is correct R is wrong
    D.
    A is wrong R is correct

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  8. The parameter β of a BJT change by 300%. If self bias is used in the amplifier using this BJT, the quiescent value of IC and VCE remain almost the same.

    9. A.
    True
    B.
    False

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  9. A bypass capacitor produces

    10. A.
    dc ground
    B.
    ac ground
    C.
    both dc and ac ground
    D.
    none of the above

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  10. Rise time in a transistor is change from

    11. A.
    10% of its final value to 90% of its final value
    B.
    0% of its final value to 90% of its final value
    C.
    10% of its final value to 100% of its final value
    D.
    10% to its final value to 50% of its final value

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