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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. If three cascaded stages of amplifier have gains 10, 20 and 30 the overall voltage will be

    2. A.
    30
    B.
    60
    C.
    600
    D.
    6000

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  2. A collector collects

    3. A.
    electrons from the base in case of N-P-N transistor
    B.
    electrons from the emitter in case P-N-P transistor
    C.
    holes from the base in case of N-P-N transistor
    D.
    holes from the base in case of P-N-P transistor

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  3. In a resistance loaded, RC coupled amplifier the d.c. component is blocked by

    4. A.
    Transistor
    B.
    CC
    C.
    RB
    D.
    RC

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  4. A logarithmic amplifier has diode in the feedback path.

    5. A.
    True
    B.
    False

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  5. The input resistance of FET in the low frequency small signal operation is

    6. A.
    infinitely high
    B.
    around 1 kΩ
    C.
    around 50 Ω
    D.
    very small

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  6. The enhancement type MOSFET is called a

    7. A.
    normally on MOSFET
    B.
    normally off MOSFET
    C.
    P-type MOSFET
    D.
    N-type MOSFET

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  7. The input gate current of a FET is

    8. A.
    a few amperes
    B.
    a few milli amperes
    C.
    a few micro amperes
    D.
    negligible

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  8. For maximum unclipped output from a CE amplifier, the Q point should be

    9. A.
    at the centre of dc load line
    B.
    at the centre of ac load line
    C.
    at the centre of collector current
    D.
    none of the above

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  9. The circuit shown in figure will act as

    10. A.
    differentiator
    B.
    adder
    C.
    clipper
    D.
    clamper

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  10. Which of the following best represents the input impedance of an actual op-amp?

    11. A.
    10 ohm
    B.
    1 k ohm
    C.
    1 M ohm
    D.
    100 M ohm

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