## Is Nortons theorem applicable for AC source?

For alternating current (AC) systems the theorem can be applied to reactive impedances as well as resistances. The Norton equivalent circuit is used to represent any network of linear sources and impedances at a given frequency.

**Can we apply superposition theorem to AC circuit?**

Yes, the superposition theorem is applicable to AC circuits as well. The theorem is valid for any linear circuit. The best way to use superposition with AC circuits is to calculate the complex effective or peak value of the contribution of each source applied one at a time, and then to add the complex values.

**Is Thevenin theorem applicable for AC source?**

We can apply Thevenin’s theorem to both AC and DC networks. In AC network we have to use phasor sum of the voltage sources. All other conditions are similar to the DC source. Thevenin’s theorem cannot be applied to non-linear circuits.

### How can Thevenin’s resistance and Norton resistance be correlated in an AC circuit?

Thevenin and Norton’s resistances are equal. Thevenin voltage is equal to Norton’s current times Norton resistance. Norton current is equal to Thevenin voltage divided by Thevenin resistance.

**What is Nortons equivalent?**

Using a Norton equivalent circuit, a voltage source with a series resistor can be converted into an equivalent current source with a parallel resistor. From: The Electrical Engineering Handbook, 2005.

**What is Norton theorem BYJU’s?**

Norton’s theorem states that any two output terminals of an active linear network containing independent sources (it includes voltage and current sources) can be replaced by a current source and a parallel resistor RN.

#### Can superposition theorem be applied to a circuit containing one AC and one DC source?

Answer: Because AC voltage and current equations (Ohm’s Law) are linear just like DC, we can use Superposition to analyze the circuit with just the DC power source, then just the AC power source, combining the results to tell what will happen with both AC and DC sources in effect.

**What is superposition theorem and when is it important to analyze an AC circuit?**

Thesuperposition theorem states that in a linear circuit with several sources, the current and voltage for any element in the circuit is the sum of the currents and voltages produced by each source acting independently. The theorem is valid for any linear circuit.

**What are the limitations of Thevenin’s and Norton’s 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.

## Under what condition Thevenin’s theorem is not applicable?

Thevenin’s theorem assumes linearity. So, if your circuit is non-linear, the theorem doesn’t apply. However, one can linearize the circuit about an operating point and find a small-signal Thevenin equivalent circuit.

**How Norton theorem is equivalent to Thevenin’s theorem?**

Norton’s Thereom is identical to Thevenin’s Theorem except that the equivalent circuit is an independent current source in parallel with an impedance (resistor). Therefore, the Norton equivalent circuit is a source transformation of the Thevenin equivalent circuit.

**How are Norton’s theorem and Thevenin’s theorem related?**

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 the AC Thevenin’s theorem?

AC Thevenin’s Theorem AC Thevenin’s Theorem Any combination of sinusoidal AC sources and impedances with two terminals can be replaced by a single voltage sourcee and a single series impedance z. The value of e is the open circuit voltage at the terminals, and the value of z is e divided by the current with the terminals short circuited.

**What is Norton’s theorem?**

In the application of Norton’s theorem in an a.c. circuits, the resistances are replaced by impedances, the circuit variables being current and or voltage phasors.

**What is the difference between Thevenin and Norton circuits?**

You may already know that the idea behind Thevenin and Norton circuits is that any linear, two terminal circuit can be replaced with an equivalent circuit consisting of either a voltage source in series with a resistor (Thevenin circuit) OR a current source in parallel with a resistor (Norton circuit).

#### What is the superposition theorem?

Superposition Theorem •Principle of Superposition In any linearnetwork of resistors, voltage sources and current sources, each voltage and current in the circuit is equal to the algebraic sum of the voltages or currents that would be present if each source were to be considered separately.