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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

  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

  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.

  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

  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

  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

  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

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


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

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

  17. 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