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ECE :: Network Analysis and Synthesis

  1. Which of the following is correct?

  2. A.
    Voltages across a capacitance can change instantaneously
    B.
    Voltages across a capacitance cannot change instantaneously
    C.
    Charge across a capacitance is always constant
    D.
    Charge across a capacitance can change instantaneously

  3. The V-i relation for a varistor is

  4. A.
    i = kvn
    B.
    v = kin
    C.
    i = kv3
    D.
    v = ki3

  5. For 2 port reciprocal network, o.c. output voltage divided by input current is equal to

  6. A.
    B
    B.
    z12
    C.
    1/y12
    D.
    h12

  7. The energy dissipated W in a resistance having voltages v and current i is given by

  8. A.
    B.
    W = vit2
    C.
    D.

  9. In figure, the current through 2 Ω resistance is

  10. A.
    zero
    B.
    -2A
    C.
    2A
    D.
    1A

  11. An RC impadence function has a pole at s = 0. The first element in the Foster form of synthesis

  12. A.
    is R
    B.
    may be R and C
    C.
    is C
    D.
    is R and C in parallel

  13. The frequency at which maximum voltage occurs across the capacitance in R-L-C series circuits is given by


  14. μ0 = 8.85 x 10-12F/m.

  15. A.
    True
    B.
    False

  16. A series RC circuit has fixed XC, and variable R. The current locus is in the first quadrant.

  17. A.
    True
    B.
    False

  18. One limitation of constant k filters is that Z0 is not constant in the pass band.

  19. A.
    True
    B.
    False