Set the real and imaginary values of the four impedances as well as the magnitude and phase of the voltage and current sources.
Step 1. Remove that portion of the network (the load) across which the Thévenin equivalent circuit is to be found.
Step 2. Calculate the Thévenin impedance \(\small{Z_{Th}}\) by setting all voltage and current sources to zero (short circuit and open circuit, respectively).
\( Z_{Th} = (Z_1||Z_2)+Z_3 = \) Ω
Step 3. Determine the open-circuit Thévenin voltage \(\small{E_{Th}}\) by first replacing the voltage and current sources and then finding the open-circuit voltage between the terminals.
\( E_{Th} = \frac{Z_2}{Z_1+Z_2}E_1 = \) V
Step 4. Draw the Thévenin equivalent circuit with the portion of the circuit previously removed (the load) replaced between the terminals of the Thévenin equivalent circuit.
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