Menu
Home / ECE / Exam Questions Paper :: Discussion

Discussion :: Exam Questions Paper

  1. A two port network shown below is external dc sources. The voltages and the currents are measured with voltmeters V1 V2 and ammeter A1 A2 (all assumed to be ideal), as indicated. Under following switch conditions, the readings obtained are:
    (i) S1 - Open, S2 - Closed A1 = 0A, V1 = 4.5 V, V2 = 1.5 V, A2 = 1 A
    (ii) S1 - Closed, S2 - Open A1 = 4A, V1 = 6 V, V2 = 6 V, A2 = 0 A

    The z-parameter matrix for this network is

    2. View Answer

    Workspace

    View Answer

    Answer : Option C

    Explanation :

    V1 = Z11I1 + Z12I2

    V2 = Z22I + Z22I2

    Using the given information; S1-open, S2-closed

    4.5 = Z121 ⇒Z12 = 4.5

    1.5 = Z221 ⇒ Z22 = 1.5

    S1-closed, S2-open

    6 = Z111 ⇒ Z11 = 1.5

    6 = Z214 ⇒ Z21 = 1.5

    Thus Z matrix =

Write your comments here:

Be The First To Comment