Node voltage practice problems
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Read the node-voltage method class notes.
For the circuit shown,
- R1 = 82 kΩ
- R2 = 39 kΩ
- R3 = 39 kΩ
- R4 = 12 kΩ
- R5 = 10 kΩ
- VS1 = 5 V
- VS2 = 4 V

Use the node-voltage method to find the voltages at node a and b with respect to the indicated ground.