Network Elements and the Concept of Circuit


Network Elements and the Concept of Circuit

  1. In the circuit shown below, S was initially open. At time t = 0, S is closed. When the current through the induc-tor is 6A, the rate of change of current through the resistor is 6 A/s. The value of inductor would be—











  1. View Hint View Answer Discuss in Forum

    As we know that VL = L
    di
    & VR = i R = 6 × 1 = 6V
    dt

    18 = VL + VR
    ⇒ VL = 12V
    12 = L
    di
    dt

    ⇒ L = 2H
    di
    6A/S
    dt

    Hence alternative (B) is the correct choice


    Correct Option: B

    As we know that VL = L
    di
    & VR = i R = 6 × 1 = 6V
    dt

    18 = VL + VR
    ⇒ VL = 12V
    12 = L
    di
    dt

    ⇒ L = 2H
    di
    6A/S
    dt

    Hence alternative (B) is the correct choice



  1. For the circuit given below, the power absorbed by the load RL is—











  1. View Hint View Answer Discuss in Forum

    From given figure

    I =
    2V
    = 2 Amp.
    1Ω

    Voltage across load resistance
    VL = 2I = 2 × 2 = 4V
    Power absorbed =
    V2L
    =
    42
    = 8W
    RL2

    Correct Option: B

    From given figure

    I =
    2V
    = 2 Amp.
    1Ω

    Voltage across load resistance
    VL = 2I = 2 × 2 = 4V
    Power absorbed =
    V2L
    =
    42
    = 8W
    RL2



  1. The f-cut set matrix of a graph shown in fig. with respect to chosen tree is as given below—









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    NA

    Correct Option: B

    NA


  1. The f-cut set matrix of a graph shown below with respect to chosen tree is as given below:

    The oriented graph of the network is—









  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: A

    NA



  1. The f-cut set matrix of a graph is given as:

    The oriented graph of the network is—









  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: D

    NA