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In the two-port network shown, which of the following is correct?

In the two-port network shown, which of the following is correct? Correct Answer i<sub>a</sub> = i<sub>b</sub>

For a two-port network, the current entering to the terminal a of port 1 is same as the current leaving from terminal b of port 1.

Similarly, the current entering to the terminal c of port 2 is same as the current leaving from terminal d of port 2.

Therefore, ia= ib and i­c = id

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