Home / ECE / Network Analysis and Synthesis :: Section 20

ECE :: Network Analysis and Synthesis

  1. Assertion (A): When capacitor is fed by a dc voltage given a capacitor behaves as short circuit at t = 0 and open circuit at f = ∞.

    Reason (R): The impedance of a capacitor is

  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

    1. P(s) = s4 + s3 + 2s2 + 4s + 3
    2. Q(s) = s4 + 2s3 + s
    Which one of the following statements in correct for above P(s) and Q(s) polynomials?

  3. A.
    Both P(s) and Q(s) are Hurwitz
    B.
    Both P(s) and Q(s) are non-Hurwitz
    C.
    P(s) is Hurwitz but Q(s) is non-Hurwitz
    D.
    P(s) is non-Hurwitz but Q(s) is Hurwitz

  4. The material used for fuse must have

  5. A.
    low melting point and low specific resistance
    B.
    low melting point and high specific resistance
    C.
    high melting point and low specific resistance
    D.
    none

  6. The function δ (t - b) is a

  7. A.
    unit impulse
    B.
    unit step
    C.
    unit doublet
    D.
    none of the above

  8. The circuit in figure is

  9. A.
    Cauer I form
    B.
    Foster I form
    C.
    Cauer II form
    D.
    Foster II form

  10. In ionic bonding, the valence electron is donated by one atom and accepted by the other atom.

  11. A.
    True
    B.
    False

  12. If Ia, Ib, Ic are line currents and Ia2 is the negative sequences component of Ia then

  13. A.
    Ia2 = Ia + Ib + Ic
    B.
    C.
    D.

  14. For stable network, the real part of poles and zeros of driving point function must be

  15. A.
    negative
    B.
    negative or zero
    C.
    zero
    D.
    positive

  16. Maximum power from a source having internal resistance Ri is delivered to a resistive load RL, if

  17. A.
    Ri > RL
    B.
    Ri < RL
    C.
    Ri = RL2
    D.
    Ri = RL

  18. Terra-watt is equal to

  19. A.
    103 W
    B.
    106 W
    C.
    109 W
    D.
    1012 W