**Norton’s Theorem**

Norton’s theorem states that any 2-terminal linear and bilateral network or circuit having multiple independent and dependent sources can be represented in a simplified equivalent circuit known as Norton’s equivalent circuit.

Norton’s Theorem states that – A linear active network consisting of independent or dependent voltage source and current sources and the various circuit elements can be substituted by an equivalent circuit consisting of a current source in parallel with a resistance.The current source being the short-circuited current across the load terminal and the resistance being the internal resistance of the source network.

**Steps for Solving a Network Utilizing Norton’s Theorem**

**Step 1 –** Remove the load resistance of the circuit.

**Step 2 –** Find the internal resistance Rint of the source network by deactivating the constant sources.

**Step 3 –** Now short the load terminals and find the short circuit current ISC flowing through the shorted load terminals using conventional network analysis methods.

**Step 4 –** Norton’s equivalent circuit is drawn by keeping the internal resistance Rint in parallel with the short circuit current ISC.

**Step 5 –** Reconnect the load resistance RL of the circuit across the load terminals and find the current through it known as load current IL.

**Numerical on Thevenin’s Theorem**

**Problem**** 1:**

**Problem**** 2:**

**PDF will be updated soon**

I hope the above-handwritten note can help you understand Norton’s Theorem properly. Stay with us for more **educational video lectures** and **handwritten notes** with **free job alerts **as well.

**Checkout:**