Consider the two-port resistive network shown in the figure. When an excitation of 5 V is applied across Port 1, and Port 2 is shorted, the current through the short circuit at Port 2 is measured to be 1 A (see (a) in the figure). Now, if an excitation of 5 V is applied across Port 2, and Port 1 is shorted (see (b) in the figure), what is the current through the short circuit at Port 1?

GATE 2019 Electronics & Communication Q4 — Electrical Engineering

GATE 2019Set MasterQ4MCQanswer pendingexplanation soonmedium

Electrical Engineering · Network Theory - Two-Port Networks

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Figure from the original GATE 2019 paper. (IIT Madras archive)

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Network Theory - Two-Port Networks has appeared in GATE Electronics & Communication 4 times across 4 years (2019, 2023, 2024, 2025).

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