Source transformation practice problems
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Read the source-transformation class notes.
For the circuit shown,
- R1 = 18 kΩ
- R2 = 15 kΩ
- R3 = 10 kΩ
- R4 = 33 kΩ
- VS = 11 V
- IS = 0.24 mA

Use the source transformation method to find iR4.