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ECE :: Network Analysis and Synthesis

  1. With Is disconnected I = - 1, when Is = b is connected, the value of I will become

  2. A.
    2 A
    B.
    -1 A
    C.
    1 A
    D.
    3 A

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  3. In a resistor the current is i and the voltage is v. The rate of dissipation of heat at any time t is

  4. A.
    vi
    B.
    vit
    C.
    vt
    D.
    vit2

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  5. When two port networks are connected in cascade, it is more convenient to use hybrid parameters.

  6. A.
    True
    B.
    False

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  7. If absolute potential of A is - 8 V and that of B is - 16 V, VAB is equal to

  8. A.
    24 V
    B.
    8 V
    C.
    - 8 V
    D.
    - 24 V

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  9. An RLC series circuit is excited by 200 V, 100 Hz supply. The current is 20 A. If R = 10 Ω, XL = 50 Ω, XC is

  10. A.
    10 Ω
    B.
    14.14 Ω
    C.
    7.07 Ω
    D.
    50 Ω

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  11. For a given voltage four heating coils will give maximum heat when connected

  12. A.
    in parallel
    B.
    in series
    C.
    with two parallel pairs in series
    D.
    with one pair in parallel and the other two in series

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  13. A two branch tuned circuit has a coil of resistance R and inductance L in one branch and capacitance C in the second branch. If R is increased, the dynamic resistance

  14. A.
    decreases
    B.
    increases
    C.
    remains constant
    D.
    may increases or decreases

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