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ECE :: Network Analysis and Synthesis

  1. Assertion (A): Laplace transform of f(t) = e-at sin ωt is

    Reason (R): If Laplace transform of f(t) is F(s), then Laplace transform of e-at f(t) is F(s + a).

  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

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  3. A series RLC circuit is overdamped when

  4. A.
    B.
    C.
    D.
    R is infinite

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  5. The function (s + 2) (s + 4)/[(s + 1)(s + 3)]

  6. A.
    is a reactance function
    B.
    is an RC function
    C.
    may be a reactance function or an RC function
    D.
    may be RC function or an RL function

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  7. In figure, V1 = 40 V when R = 10 Ω, if R = 0, V2 will be

  8. A.
    40 V
    B.
    30 V
    C.
    20 V
    D.
    10 V

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  9. The series element of a band stop filter is

  10. A.
    capacitive
    B.
    inductive
    C.
    parallel combination of L and C
    D.
    series combination of L and C

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  11. In a network containing resistances, reactances the root of the characteristic equation give for the circuit

  12. A.
    the forced response
    B.
    the total response
    C.
    the natural response
    D.
    the damped response

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  13. The time constant of the circuit in figure is

  14. A.
    RC
    B.
    2 RC
    C.
    3 RC
    D.
    5 RC

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  15. The circuit whose properties are same in either direction is known as

  16. A.
    unilateral circuit
    B.
    bilateral circuit
    C.
    irreversible circuit
    D.
    reversible circuit

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  17. Assertion (A): Peak to peak value of a sinusoidal wave is 2.828 times the rms value.

    Reason (R): Peak factor of a sinusoidal wave is 1.414.

  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. In the synthesis of RLC network

  20. A.
    the number of elements in Bott-Duffin synthesis and Brune's synthesis are always equal
    B.
    the number of elements in Bott-Duffin synthesis is more than that in Brune's synthesis
    C.
    the number of elements in Bott-Duffin synthesis is less than that in Brune's synthesis
    D.
    the number of elements in Bott-Duffin synthesis may be more or less than that in Brune's synthesis

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