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ECE :: Network Analysis and Synthesis

  1. Parallel wire transmission line is an example of

  2. A.
    lumped network
    B.
    distributed
    C.
    depend upon I/P signal strength
    D.
    power I/P

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  3. A 2-terminal network consists of one of the RLC elements. The elements is connected to an ac supply. The current through the element is 1 A. When an inductor is inserted in series between the source and the element, the current through the element becomes 2 A. What is this element?

  4. A.
    A resistor
    B.
    An inductor
    C.
    A capacitor
    D.
    Cannot be single element

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  5. In figure, . The values of C and R are

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  7. Consider the following statements for a driving point function F(jω):

    1. Re F(jω) is an even function of ω and is 0 or positive for all values of ω.
    2. Im F(jω) is an even function of ω and is 0 or positive for all values of ω.
    3. Re F(jω) is an odd function of ω and is 0 or negative for all values of ω.
    4. Re F(s) = 0 for Re s = 0.
    Which one of the statements given above is/are correct?

  8. A.
    1 only
    B.
    1 and 4
    C.
    2, 2 and 4
    D.
    4 only

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  9. Which of following is linear and bilateral parameter?

  10. A.
    Resistors
    B.
    Semi conductor diodes
    C.
    Electron tubes
    D.
    Transistor

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  11. In figure, the switch is initially open. At t = 0 switch is closed. vc (0+) and iL (0+) are

  12. A.
    60 V and - 0.3 A
    B.
    150 V and zero
    C.
    zero and 0.3 A
    D.
    90 V and - 0.3 A

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  13. Which of the following statements is incorrect?

  14. A.
    Ideal voltage source is one whose internal resistance is zero
    B.
    Ideal voltage source is one whose internal conductance is zero
    C.
    Ideal voltage source is one whose generated voltage is equal to the available terminal voltage
    D.
    Ideal current source is one whose internal conductance is zero

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  15. If the peak value of output of a half wave rectifier is 100 V, the rms value is

  16. A.
    100 V
    B.
    50 V
    C.
    70.7 V
    D.
    35.35 V

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  17. Assertion (A): is not an LC function.

    Reason (R): The highest powers of numerator and denominator do not differ by 1.

  18. 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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  19. For a flexible cable, most suitable insulation is

  20. A.
    magnesium oxide
    B.
    glass fibre
    C.
    insulating tape
    D.
    polyvinyl chloride

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