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ECE :: Network Analysis and Synthesis

  1. Kirchoff's laws are applicable to

  2. A.
    steady state conditions only
    B.
    transient conditions only
    C.
    both steady state and transient condition
    D.
    both steady state and transient condition but with some constraints

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  3. In solid dielectrics the rate of deterioration doubles for every 10-12°C rise in temperature.

  4. A.
    True
    B.
    False

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  5. An RLC series circuit is excited by a step voltage E. The circuit current at t = 0 is

  6. A.
    E/R
    B.
    E/LC
    C.
    zero
    D.
    infinity

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  7. The Laplace transform of a function f(t) u(t) is __________ where f(t) is periodic with period T, and y(S) times the L.T. of f(t) for first period. Then

  8. A.
    s
    B.
    C.
    eTs
    D.

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  9. What are the ABCD parameters of the single elements circuit given below?

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  11. For representing two sinusoidal voltages on a phasor diagram

  12. A.
    Both voltages must be of the same frequency
    B.
    Both voltages must be sinusoidal but may be of different frequencies
    C.
    One of the voltages must be of 50 Hz
    D.
    The frequency of one must be integral of that of other

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  13. While using Maxwell bridge, the Q factor of a coil is obtained as

  14. A.
    1/ωCR
    B.
    ωCR
    C.
    ωC/R
    D.
    R/ωC

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  15. The colour code of a carbon resistance is yellow-violet-orange silver. The value of resistance is

  16. A.
    57000 Ω ± 5%
    B.
    47000 Ω ± 10%
    C.
    47000 Ω ± 5%
    D.
    57000 Ω ± 5%

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  17. Choose the correct option

    1. Transit period is the time between two steady state
    2. Transient Response is the response due to internal energy stored in circuit
    3. Transit response is also called natural response
    4. Transit response arises due to presence of C and L in the circuit
    5. Transit is due to R, L, C in the circuit

  18. A.
    4, 3, 2 , 1
    B.
    5, 4, 3, 2
    C.
    5, 4, 3, 1
    D.
    5, 1, 4

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  19. If current is less than 20 mA and time of contact is very small, the effect of current on human body is likely to be temporary.

  20. A.
    True
    B.
    False

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