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ECE :: Network Analysis and Synthesis

  1. Assertion (A): KCL is dual of KVL.

    Reason (R): Node is dual of mesh.

  2. A.
    Both A and R are true and R is correct explanation of A
    B.
    Both A and R are true and R is not the correct explanation of A
    C.
    A is true but R is false
    D.
    A is false but R is true

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  3. For a 2 port network, the O/P short circuit current was measured with a 1 volt source at the I/P then value of the current gives

  4. A.
    h12
    B.
    y12
    C.
    h21
    D.
    y21

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  5. The time constant of the capacitance circuit is defined as the time during which voltage

  6. A.
    falls to 36.8% of its final steady value
    B.
    rises to 38.6% of its final steady value
    C.
    rises to 63.2% of its final steady value.
    D.
    none of the above.

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  7. Figure shows the V-i characteristics of a material. The material is likely to be

  8. A.
    copper
    B.
    carbon
    C.
    zinc oxide
    D.
    rubber

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  9. How much r.m.s. current does a 300 W, 200 V bulb take from the 200V, 50 Hz power line?

  10. A.
    0.5 A
    B.
    1.5 A
    C.
    2 A
    D.
    3 A

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  11. In a series R-L-C circuit, the voltage across inductance will be maximum

  12. A.
    at resonance frequency
    B.
    just before resonant frequency
    C.
    just after resonant frequency
    D.
    none of the above

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  13. In the circuit shown in the given figure, power dissipated in the 5 Ω resistor is

  14. A.
    zero
    B.
    80 W
    C.
    125 W
    D.
    405 W

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  15. Consider the network graph shown in the figure which one of the following is NOT a 'tree' of graph

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  17. Assertion (A): A parallel resonant circuit is also called anti-resonant circuit.

    Reason (R): In a parallel resonant circuit impedance is maximum at resonance.

  18. A.
    Both A and R are true and R is correct explanation of A
    B.
    Both A and R are true and R is not the correct explanation of A
    C.
    A is true but R is false
    D.
    A is false but R is true

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