74 Norton Theorem Step 2 Find the Norton current source, IN by replacing ZL= (4 + j1) Ω with a short circuit. Figure 3.5(c) Figure 3.5(d) Figure 3.5(e) By using Ohms Law, V (5+j10) IN = = = (- 0.328 + j1.393) A R T (6−j5)