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ECE :: Network Analysis and Synthesis

  1. Two capacitor of 1 F each are connected in parallel. Another 1 F capacitor is connected in series with the parallel combination. The total capacitance is

  2. A.
    3 F
    B.
    2 F
    C.
    D.

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  3. The realization of the term Ks yields

  4. A.
    a resistance of value K ohms
    B.
    a capacitances of value K farads
    C.
    an inductance of value k farads
    D.
    either (b) or (c)

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  5. If operator 'a' = 1 ∠120° then (1 - a2) =

  6. A.
    1 ∠ - 30°
    B.
    1 ∠ 30°
    C.
    1 ∠ - 60°
    D.
    1 ∠60°

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  7. In figure, a voltmeter of internal resistance 1200 Ω is connected across 600 Ω resistance and it reads 5 V. The value of R is

  8. A.
    1200 Ω
    B.
    2400 Ω
    C.
    3600 Ω
    D.
    7200 Ω

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  9. For the wave shown in figure, the average and rms values are

  10. A.
    50 A and 57.73 A
    B.
    57.73 A and 50 A
    C.
    25 A and 57.73 A
    D.
    57.73 A and 70.7 A

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  11. A 10 ohm resistance and a 10 ohm capacitor are connected in series across a 100 V ac supply. The rms voltage across resistance is

  12. A.
    1002V
    B.
    100 V
    C.
    D.
    none of the above

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  13. When a 10 K, 10%, 1/4 Ω resistor is connected in series with a 12 K, ± 1%, 1/4 Ω resistor, the resulting combination has the following specifications

  14. A.
    22 K, ± 11%, 1/2 Ω
    B.
    22 K, ± 5.5%, 1/2 Ω
    C.
    22 K, ± 5.5%, 1/8 Ω
    D.
    none of these

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  15. The resonance frequency of the circuit is

  16. A.
    5.4 Kn2
    B.
    4.5 Kn2
    C.
    5 Kn2
    D.

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