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  • norton

Course Content


The Norton equivalent circuit is a widely used analog circuit model. The related circuit solution method, Norton's theorem, gives a useful insight into the properties of analog circuits. This article explains the basic elements of the Norton equation and how it relates to other fields such as electrical engineering and physics. In this Tutorial we will study its formulae as well as its practical application.

This is a very interesting theorem, proved by William Norton. It says that any circuitry which is fully powered with only one resistor can be replaced with an equivalent circuit with current source and one resistor in its parallel arrangement. This theorem states that the impedance of a circuit is defined by its resistance. The definition of impedance is very straightforward to understand. But this theorem also has implications for DC circuits.

All electrical circuits can be reduced to simple linear circuits with one current and resistance connected in parallel. Norton's theorem states that any linear complex electrical circuit can be completely reduced into a simple linear circuit with one current and resistance connected in parallel.

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