Question

State Norton’s theorem and draw the Norton’s equivalent circuit.

Answer 1

It states that ‘Any two terminals of a network can be replaced by an equivalent current source and an equivalent parallel resistance.’ The constant current is equal to the current which would flow in a short circuit placed across the terminals. The parallel resistance is the resistance of the network when viewed from these open-circuited terminals after all voltage and current have been removed and replaced by internal resistance.

Diagram (d) from above shows the Norton’s equivalent circuit.