Multiple choice

A two-port network shown below is excited by external DC source. The voltage and the current are measured with voltmeters V1, V2 and ammeters A1, A2 (all assumed to be ideal), as indicated

Under following conditions, the readings obtained are: (i) S1 - open, S2 - closed A1 = 0, V1 = 4.5 V, V2 = 1.5 V, A2 = 1 A (ii) S1 - open, S2 - closed A1 = 4 A, V1 = 6 V, V2 = 6 V, A2 = 0

The z-parameter matrix for this network is

  1. $\left[ \begin{array} \ 1.5 & 1.5 \\\\ 4.5 & 1.5 \end{array} \right] $
  2. $\left[ \begin{array} \ 1.5 & 4.5 \\\\ 1.5 & 4.5 \end{array} \right] $
  3. $\left[ \begin{array} \ 1.5 & 4.5 \\\\ 1.5 & 1.5 \end{array} \right] $
  4. $\left[ \begin{array} \ 4.5 & 1.5 \\\\ 1.5 & 4.5 \end{array} \right] $
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C Correct answer
Explanation

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