Circuit Theory #23 | Source Transformation Examples - Find ia and V0

Instructor: Dr. Süleyman Burak ÇELİK

Twenty-third lesson in the Circuit Theory series. This lesson continues the source transformation method with two worked examples. We reduce mixed source-resistor networks step by step, keep the terminal behavior equivalent, and solve for the requested circuit variable. Worked examples: - Example 3: use a dependent current source and source transformation to find `i_a = 6 A` - Example 4: use a given branch current and equivalent reductions to find `V_0 = 28 V` Main ideas: - Transform only valid source-resistor pairs - Keep dependent-source values symbolic until the final equation - Track current directions and voltage polarities after every transformation - A clean equivalent circuit should preserve the same terminal behavior Main takeaway: Source transformation is not just a drawing trick. It is an equivalent model change, so every resistor, polarity, and current direction must stay consistent.