# What is difference between Thevenin and Norton Theorem?

## What is difference between Thevenin and Norton Theorem?

– Norton’s theorem uses a current source, whereas Thevenin’s theorem uses a voltage source. – Thevenin’s theorem uses a resistor in series, while Norton’s theorem uses a resister set in parallel with the source. – Norton’s theorem is actually a derivation of the Thevenin’s theorem.

## What is the relationship between Thevenin and Norton Theorem?

Thevenin’s theorem states that we can replace all the electric circuit, except a load resistor, as an independent voltage source in series, and the load resistor response will be the same. The Norton’s theorem states that we can replace the electric circuit except the load resistor as a current source in parallel.

What is Thevenin’s theorem formula?

Any combination of batteries and resistances with two terminals can be replaced by a single voltage source e and a single series resistor r. The value of e is the open circuit voltage at the terminals, and the value of r is e divided by the current with the terminals short circuited.

What is Norton’s theorem formula?

In this example, the Norton current is obtained from the open circuit voltage (the Thevenin voltage) divided by the resistance r. This resistance is the same as the Thevenin resistance, the resistance looking back from AB with V1 replaced by a short circuit. since R1 and R3 form a simple voltage divider. = Ω.

### What is Norton theorem with example?

Norton’s theorem states that any linear complex electrical circuit can be reduced into a simple electric circuit with one current and resistance connected in parallel. For understanding in depth regarding norton theory, let us consider Norton’s theorem examples as follows.

### Why Norton theorem is used?

Norton’s theorem and its dual, Thévenin’s theorem, are widely used for circuit analysis simplification and to study circuit’s initial-condition and steady-state response. This is equivalent to calculating the Thevenin resistance. When there are dependent sources, the more general method must be used.

In which real life scenarios Thevenin and Norton theorems can be used?

Thevenin’s & Norton’s Theorem are used where the load can be varied . So basically these methods reduce the big linear circuit into 1 source & 1 resistor (or impedance in AC). Later we can put any kind of load & measure the variations of current & voltages across the load. The load can be a Fan, bulb, etc.

What is Norton’s theorem used for?

The Norton equivalent circuit is used to represent any network of linear sources and impedances at a given frequency. Norton’s theorem and its dual, Thévenin’s theorem, are widely used for circuit analysis simplification and to study circuit’s initial-condition and steady-state response.

## What is Thevenin’s theorem with example?

Thevenins Theorem Examples In the above circuit, the V1=28V, V2=7V are two voltage sources and R1=4 Ohm, R2=2 Ohm, and R3=1 Ohm are three resistances among which let us consider the R2 resistor as load resistance. Then, the equivalent thevenins circuit can be represented as shown in the above figure.

## What does Thevenin’s theorem states?

Thevenin’s theorem states that it is possible to simplify any linear circuit, irrespective of how complex it is, to an equivalent circuit with a single voltage source and a series resistance.

How do I prove Norton Theorem?

1. Keep all the resistance close to their maximum respective values.
2. Close the switch s1 to “aa” and s2 to “cc” positions.
3. Short the load terminals and find the short circuited current(Isc).
4. Next, compute the resistance (Rint) of the network as seen from the load terminals,

What is the limitations of Norton Theorem?

Limitations of Norton’s Theorem It’s not for such modules which are not linear like diodes, the transistor. It also not operate for such circuitries which has magnetic locking. It also not work for such circuitries which has loaded in parallel with dependent supplies.

### How to find Norton equivalent?

Norton’s Theorem is a way to reduce a network to an equivalent circuit composed of a single current source, parallel resistance, and parallel load. Find the Norton source current by removing the load resistor from the original circuit and calculating the current through a short (wire) jumping across the open connection points where the load

### What is a Norton’s theorem?

Norton’s theorem. The Norton equivalent circuit is used to represent any network of linear sources and impedances at a given frequency . Norton’s theorem and its dual, Thévenin’s theorem, are widely used for circuit analysis simplification and to study circuit’s initial-condition and steady-state response.

How to calculate Norton current?

– Take the voltage sources out, make a short circuit – Take the current sources out, make an open circuit – Then calculate from the circuit

How to find Norton current?

Norton equivalent current is the current observed to be flowing through the terminals , when the terminals are short circuited. To calculate the Norton current either a observation is made by short circuiting the output terminals and measuring the current through it , or various mathematical techniques like Ohm’s law, KCL and KVL are used.