What is the short-circuit impedance at port 1 for the given two-port network?
Show Hint
For \(Z\)-parameters:
\[
Z_{11}
=
\left.\frac{V_1}{I_1}\right|_{I_2=0}
\]
(port 2 open-circuited),
whereas a short-circuit condition implies \(V_2=0\). Always check carefully whether the question is asking for a Z-parameter or simply the impedance seen with a shorted port.
