Menu
Home / ECE / Analog Electronics :: Section 5

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. A dc power supply has no load voltage of 30 V and full load voltage of 25 V at full load current of 1 A. The output resistance and voltage regulation respectively are

    2. A.
    5 Ω and 25%
    B.
    25 Ω and 20%
    C.
    5 Ω and 16.7%
    D.
    25 Ω and 16.7%

    View Answer

    Workspace

    Discuss Discuss in Forum

  2. The main advantage of CC amplifier is

    3. A.
    High input impedance and low output impedance
    B.
    Low input impedance and high output impedance
    C.
    High voltage gain
    D.
    High current gain

    View Answer

    Workspace

    Discuss Discuss in Forum

  3. If a = 0.995, IE = 10 mA, ICO = 0.5 mA, then ICEO will be

    4. A.
    100 μA
    B.
    25 μA
    C.
    10.1 μA
    D.
    10.5 μA

    View Answer

    Workspace

    Discuss Discuss in Forum

  4. Assertion (A): In class C amplifier the efficiency is more than that for other classes of amplifiers

    Reason (R): In class C amplifier we can get high efficiency over a wideband

    5. 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

    View Answer

    Workspace

    Discuss Discuss in Forum

  5. In the following figure C = 0.02 μF, and Vth is known to be of frequency ω = 107 rad/sec and rd = 2.5 Ω and ZTh = RTh = 10 Ω Then phase angle between id and Vd

    6. A.
    26.5°
    B.
    25°
    C.
    30°
    D.
    0°

    View Answer

    Workspace

    Discuss Discuss in Forum

  6. A class C amplifier has input frequency of 200 kHz. If width of collector pulses is 0.1 μs, duty cycle is

    7. A.
    1%
    B.
    2%
    C.
    10%
    D.
    20%

    View Answer

    Workspace

    Discuss Discuss in Forum

  7. Output of a phase splitter is

    8. A.
    a pair of sine waves of unequal amplitude
    B.
    a pair of sine waves of equal amplitudes
    C.
    a pair of sine waves of equal amplitudes and opposite phase
    D.
    a pair of sine waves of unequal amplitudes and opposite phase

    View Answer

    Workspace

    Discuss Discuss in Forum

  8. In a transistor the minimum and maximum values of βdc are 100 and 121. The proper value of βdc to be used to locate Q point is

    9. A.
    100
    B.
    121
    C.
    110.5
    D.
    110

    View Answer

    Workspace

    Discuss Discuss in Forum

  9. The input to an op-amp integrating amplifier is a constant voltage. The output will be

    10. A.
    a constant voltage
    B.
    a sawtooth wave
    C.
    a ramp
    D.
    ac voltage

    View Answer

    Workspace

    Discuss Discuss in Forum

  10. FET amplifier is more difficult to analyse than BJT amplifier.

    11. A.
    True
    B.
    False

    View Answer

    Workspace

    Discuss Discuss in Forum

Java Programming Questions and Answers Interview Questions and Answers