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ECE :: Network Analysis and Synthesis

  1. Two coils are connected in parallel. Their fluxes are adding. If the connections of one of the coils are reversed, the total inductance of the arrangement

  2. A.
    will decrease
    B.
    may increase or decrease
    C.
    will remain the same
    D.
    will increase

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  3. The graph of a network has 6 branches with 3 tree branches. The minimum number of equations required for solution of network is

  4. A.
    2
    B.
    3
    C.
    4
    D.
    5

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  5. In figure, S is closed at t = 0. At t = t1, I = 1 A and di/dt = 1 A/s. Then the value of L is

  6. A.
    1 H
    B.
    2 H
    C.
    3 H
    D.
    4 H

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  7. In the circuit of figure, the switch is closed at t = 0. At t = 0+ the current supplied by battery is

  8. A.
    0 A
    B.
    5 A
    C.
    less than 5A
    D.
    infinity

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  9. If VA = - 10 V and VB = - 15 V, VAB = 5 V.

  10. A.
    True
    B.
    False

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  11. Assertion (A): Tie set schedule is used in nodal analysis.

    Reason (R): Loop currents are fictitious quantities.

  12. 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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  13. When a lead acid cell discharges, the specific gravity of electrolyte increases.

  14. A.
    True
    B.
    False

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  15. For a high pass filter, β = p in attenuation band.

  16. A.
    True
    B.
    False

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  17. A minimum function has

  18. A.
    poles and zeros on imaginary axis of s plane
    B.
    no poles or zeros on imaginary axis of s plane
    C.
    only poles but no zeros on imaginary axis of s plane
    D.
    only zeros but no poles on imaginary axis of s plane

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  19. The current in an RL series circuit is 1 - e-t amperes. Then di/dt is

  20. A.
    1 - e-t
    B.
    - e-t
    C.
    et
    D.
    e-2t

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