Thevenin & Norton practice problems
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Read the Thevenin-Norton class notes.
For the circuit shown,
- R1 = 390 Ω
- R2 = 150 Ω
- R3 = 470 Ω
- R4 = 680 Ω
- VS = 23 V
- IS = 90 mA

Find the Norton equivalent of the circuit at the port defined by the nodes a and b.