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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. An engineer designs an amplifier to have a voltage gain of 60, but when constructed it only had a gain of 50. Which of the following will increases from this type of operation?

    2. A.
    Stability
    B.
    Bandwidth
    C.
    Distortion
    D.
    Input resistance

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  2. For a transistor if adc = 0.98 and emitter current IE is 2 mA, then base current will be

    3. A.
    10 μA
    B.
    40 μA
    C.
    80 μA
    D.
    200 μA

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  3. Assertion (A): Linear ICs include audio amplifier, wideband amplifier, RF amplifier and IF amplifier

    Reason (R): The error voltage in a feedback circuit is very small

    4. 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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  4. The given circuit has a feedback factor of

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  5. Assertion (A): The horizontal intercept of dc load line is the same as ideal cut off point

    Reason (R): When a transistor is in cut off region, collector current is zero

    6. 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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  6. Which of the following statement is incorrect?

    7. A.
    UJT is a 3-terminal diode having two unequally doped regions
    B.
    A UJT can be triggered by any one of its three terminals
    C.
    The bi-directional switching characteristics of a diac are symmetrical
    D.
    As compared to JFETs, MOSFETs generate less noise in high gain amplifiers

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  7. Which circuit is called swamped amplifier?

    8. A.
    CC
    B.
    CE
    C.
    CB
    D.
    Both (a) and (b)

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  8. The ripple factor of a power supply is given by

    9. A.
    Pdc/Pac
    B.
    C.
    D.

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  9. In a linear op-amp circuit

    10. A.
    the product of gain and bandwidth is constant
    B.
    input can be dc only
    C.
    input can be ac only
    D.
    saturation may occur

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  10. In a normally biased N-P-N transistor the main current crossing the collector junction is

    11. A.
    a drift current
    B.
    a hole current
    C.
    a diffusion current
    D.
    same as the base current

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