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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 h parameter matrix for this network is

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    Workspace

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    Answer : Option A

    Explanation :

    V1 = Z11I1 + Z12I2 → (1)

    Substitute (2) in (1) to get V1 in terms of I1 and V2

    Thus H matrix =

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