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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 of the following uses a capacitor in the feedback path?

    2. A.
    Active low pass filter
    B.
    Active high pass filter
    C.
    Both (a) or (b)
    D.
    Neither (a) nor (b)

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  2. In an inverting amplifier using op-amp the current input to the inverting terminal

    3. A.
    is equal to the current through feedback resistance
    B.
    is less than the current through feedback resistance
    C.
    is more than the current through feedback resistance
    D.
    may be equal to, less or more than current through feedback resistance

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  3. For a transistor the normal collector voltage is 12 V. If actually it is found to be + 28 V, the trouble could be

    4. A.
    RL is open
    B.
    RE is open
    C.
    CE is shorted
    D.
    CE is open

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  4. In a CE transistor amplifier, when collector-emitter voltage increases

    5. A.
    the instantaneous operating point moves up the load line
    B.
    the instantaneous operating point moves down the line
    C.
    load current increases
    D.
    none of the above

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  5. In figure, VC is approximately equal to

    6. A.
    2 V
    B.
    4.6 V
    C.
    8 V
    D.
    7.6 V

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  6. Which one of the following power amplifier has the maximum efficiency?

    7. A.
    Class A
    B.
    Class B
    C.
    Class AB
    D.
    Class C

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  7. Figure shows small signal model of CB amplifier circuit. Then I and R are respectively equal to

    8. A.
    a ie and re
    B.
    C.
    a ie and re (a - 1)
    D.
    (a - 1) ie and re

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  8. The common emitter short circuit current gain β of a transistor

    9. A.
    is a monotonically increasing function of the collector current Ic
    B.
    is a monotonically decreasing function of Ic
    C.
    increasing with Ic, for low Ic, reaches a maximum and then decreases with further increase in Ic
    D.
    is not a function of Ic

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  9. A complementary symmetry amplifier has

    10. A.
    1 P-N-P and 1 N-P-N transistor
    B.
    2 P-N-P transistor
    C.
    2 N-P-N transistor
    D.
    2 P-channel FETs

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  10. The units of are

    11. A.
    V
    B.
    V-1
    C.
    J
    D.
    J/K

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