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ECE :: Network Analysis and Synthesis

  1. A square current wave of magnitude 1 A is applied to an element for 5 seconds. The voltage across the element rises linearly from 0 to final value linearly. The element is

  2. A.
    resistance
    B.
    inductance
    C.
    capacitance
    D.
    R and C in series

  3. A periodic voltage v(t) = 1 + 4 sin ωt + 2 cos ωt is applied across a 1 ohm resistance. The power dissipated is

  4. A.
    1 W
    B.
    11 W
    C.
    21 W
    D.
    24.5 W

  5. A constant k high pass p section has a characteristic impedance of 300 Ω at f = ∞ . At f = fc, the characteristic impedance will be

  6. A.
    zero
    B.
    C.
    300 Ω
    D.
    more than 300 Ω

  7. If A = 4∠7°, A2 is

  8. A.
    16∠14°
    B.
    16∠49°
    C.
    16∠7°
    D.
    16∠3.5

  9. Zinc oxide is a non-linear resistance.

  10. A.
    True
    B.
    False

  11. For the three coupled coils shown in figure, KVL equation is


  12. Figure shows a dc circuit. The Thevenin's equivalent circuit at terminals a - b is

  13. A.
    B.
    C.
    D.
    not feasible

  14. The dependent current source shown in given figure.

  15. A.
    delivers 80W
    B.
    absorbs 80W
    C.
    deliver 40W
    D.
    absorbs 40W

  16. The current flowing through the resistance R in the circuit in the figure has the form 2 cos 4t, where R is

  17. A.
    (0.18 + j0.72)
    B.
    (0.46 + j1.90)
    C.
    - (0.18 + j1.90)
    D.
    (0.23 - 0.35 j)

  18. Energy = voltage x charge.

  19. A.
    True
    B.
    False