Electrical Engineering › Section F · Network theorems (dc) › Topic F.3
Norton's theorem
Norton's theorem is the mirror image of Thevenin's: it models any linear two-terminal network as a current source with a resistor in parallel. Knowing both forms, and how to switch between them, lets you choose whichever makes a problem shortest.
In this topic
- The other way to model a network
- The theorem
- Finding the Norton current
- Finding the Norton resistance
- Worked example: a Norton equivalent
- Switching between Norton and Thevenin
- Worked example: two current sources in parallel
- Measuring and using the Norton form
- Common mistakes to avoid
- Key takeaways
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