Uploaded October 2021 | Updated September 2026, 3 weeks ago

---

Norton's theorem is a useful tool for creating a simplified and equivalent version of a linear, bilateral circuit. The basic idea is that you can reduce any linear bilateral circuit (ie., one with only resistors, voltage sources and current sources) down to an equivalent circuit with a single current source and a single shunt (parallel) resistor. This video explains the idea behind Norton's theorem and then works through an example demonstrating the process of converting to a Norton equivalent circuit

Video Timeline:
00:03 - An Ode to Norton's Theorem
00:32 - Norton's Theorem defined
00:52 - Linear network defined
01:15 - Bilateral network defined
02:12 - Relationship between Thevenin's Theorem and Norton's Theorem
03:02 - Norton's Theorem in detail
04:07 - Steps in creating a Norton equivalent circuit
05:00 - Example circuit
06:15 - Calculate Norton resistance for example circuit
06:58 - Calculate Norton current for example circuit
09:05 - Norton equivalent circuit of example
09:40 - Put the load resistor into Norton equivalent and calculate load voltage and current
10:58 - recap
12:05 - random body percussion


electronx.ca