Figure: Find Thevenin's equivalent ckt:

Solution:

$ \text { Part-1 - To find "V_Th } \\ $

$ V_{\text {Th }}=V_x...(1) $

$ \begin{aligned} \\ &\begin{aligned}\\ &K V L \text { to } 100 p \\\\ &-150+10\left(5+I_{15}\right)-\frac{V_x}{3}+15 I_{15}=0 \\ \end{aligned}\\\\ &\text { But } V_x=15 \cdot I_{15}\\\\ &-150+50+10 I_{15}-{\frac{15 \cdot I_{15}{}}3{+15 I_{15}=0}}\\\\ &-100+10 I_{15}-5 I_{15}+15 …