Questions tagged [norton]
For questions about Norton's Theorem, which states that a linear network of impedances, voltage sources, and current sources can be replaced with an equivalent network composed of a current source in parallel with an impedance. Consider also using the "thevenin" tag for questions also involving its dual, Thévenin's theorem.
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Thévenin's Theorem - What to do when ending up with a voltage source in paralell with one resistor?
I want to find the Thévenin and Norton equivalents for the circuit below.
To find \$R_{Th}\$ we first kill all the sources. Then we have 2 paralell resistors, in series with one resistor and all of ...
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Node analysis in Thevenin Equivalent
I have the following circuit and imagine at the right side of the capacitor there is an open circuit with two terminals A,B. There is one dependent source and one independent source.Therefore \$R_{th} ...
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Performing Node analysis with more
Following a previous question problem regarding the node analysis with dependent source in a circuit I made some extensions that I would appreciate some validation if someone know.
I have the ...
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How can I perform Node Analysis with dependent source?
I have the following circuit as shown in the picture. My question is how can I perform Node analysis in this circuit in the node \$V_{0}\$?
I want to find \$i_{1}\$ but without KCL or KVL. Just the ...
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Finding the Thévenin and Norton equivalents for a circuit
I want to find the Thévenin and Norton equivalents for the circuit below. However I'm new to this and I would really appreciate some help.
I start with a source transformation and naming all the ...
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Possible Explanations for Unexpected Results: Negative Resistance and Consistent Short-Circuit Current and Open-Circuit Voltage
My objective in this circuit is to find the value of RL that achieves maximum power transfer.
simulate this circuit – Schematic created using CircuitLab
To do this, find Voc and Isc, as shown ...
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How do I find the Thevenin Voltage?
I have this problem that I need to study up for my electronics reexam.
I do not know how I got the Vc/5 , probably from a YT guide I saw at that time.
Please help me if you can, because I cannot ...
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Thevenin and Norton Problem
I have been trying to solve this circuit for an hour. I am doing something wrong, could you please verify my step i am not sure what i did wrong. VOc/Isc should be 0.51 ohms and Vo should be -2.72 V.
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Why is Thevenin Voltage of this circuit equal to the voltage source?
I am well aware that Thevenin voltage is equal to the open circuit voltage at the end of the circuit.
The circuit information are: \$𝐕_𝐴\$=50∠0 V, \$𝐈_𝐵\$=5∠0 A, \$𝑅_1\$=10 Ω, \$𝑅_2=10\$ Ω, and ...
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How is circuit "a" simplified to circuit "b"?
In circuit "a", both of those boxes are Norton equivalent circuits. My textbook says that circuit "a" can be simplified to circuit "b". How is it possible to add two ...
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Sign convention to use in Nodal Analysis
simulate this circuit – Schematic created using CircuitLab
We know that current flows from higher potential to lower potential in a resistor. In this question, we make use of nodal analysis and ...
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Is this a correct simplification of a circuit like this?
I am trying to find the Norton equivalent current of the circuit in the top left but if i simplify the circuit like this i get the wrong answer. I drew the steps i took in simplyfying the resistance, ...
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Finding the Norton current
We are asked to find the Norton current or short-circuit current (Isc). I have managed to find v2 = 3V and Norton resistance is 4Ω. My book says Isc = v2/R3 but doesn't explain why. Is there any ...
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Rules for Obtaining Dual Circuits with Diodes
After several hours of trial and error, the shown circuits are dual of each other, in the Thevenin Norton sense.
Note how similar their responses are. And why it included an additional resistor, ...
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Is the answer wrong on the Norton equivalent from E4U, or is my analysis wrong?
Original question
I have taken screenshot of the question here:
Here is my analysis:
$$
R_{parallel} = \frac{5 \times 35} {5 + 35}
=
\frac{35} {8}
$$
$$
I = \frac{60} {5+R_{parallel}} = \frac{32} {5}...
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Help finding maximum power on R4 using Thévenin
I'm trying to solve the question using Thévenin but I'm getting wrong answers.
Question:
Find The Maximum Power on \$R_4\$
My Try:
I Started with Finding \$R_{th}\$ by disconnecting \$R_4\$ :
Then ...
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Solve the current theough 15Ω load resistance using Norton's theorem
Here, I am asked to find out the current through the 15 ohm load resistor (the resistor on the extreme right) using Norton's theorem. I have proceeded with the sum and found out the Norton's ...
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How come the Thevenin Equation is not being satisfied in this simulation?
i1 = 1A
R1 = 100 Ohm
R2 = 100 Ohm
R3 = 2200 Ohm
R4 = 220 Ohm
R3 and R4 are in parallel.
The first circuit shows that I open circuited at the end to calculate the Voltage across the open circuit ...
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Why is the equivalent resistance here equal to \$R_3\$?
simulate this circuit – Schematic created using CircuitLab
The resistors are \$R_1\$ (top), \$R_2\$ (bottom left), and \$R_3\$ (bottom right).
Why is \$R_\text{equivalent}= R_\text{ab}\$ equal ...
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Distinguishing between series and parallel connections in circuit
I am not sure how to distinguish if two circuit components are connected in series or parallel.
For example, in the image below, the Rt was calculated by knowing the two resistors are connected in ...
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How to transform between sources when they are in parallel?
Imagine you are given this circuit, and you want to transform the current generator into a voltage one, and then, find out the Thevenin and Norton Equivalents.
At first glance, what you might think ...
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How to proceed with Thévenin
Find the short circuit current with respect to A and B.
When applying Thévenin's theorem to find Isc the 4 Ω resistor becomes 0. How to proceed further?
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Norton's equivalent circuit - current through short circuit
In this tutorial, the tutor is finding current through 12 ohm resistor using Norton's theorem.
My question is:
When 12 ohm resistor was replaced with a short circuit, why entire current (15-I1) isn't ...
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The reason why Thevenin voltage source is in SERIES with Thevenin resistor and why Norton current source is in PARALLEL with Norton resistor
As you know, in Thevenin's theorem Thevenin voltage source is in series with Thevenin resistor and in Norton's theorem Norton current source is in parallel with Norton resistor. COULDN'T Thevenin ...
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Current source in parallel with a short circuit
If a Dependent current source is placed in parallel with a short circuit,
to solve our calculations would we assume that no current will flow through the dependent source and hence we remove it. For ...
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How do I use Norton's Theorem to find the current in this resistor? [closed]
I've been trying to solve this question but it seems impossible
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If all the resistances inside a passive resistive network is multiplied by some factor, what will happen to the thevenin resistance?
Lets imagine an arbitrary passive resistive network, a black box. Let its Thevenin equivalent resistance across some terminals \$a,b\$ of the network be \$R_{th}\$ ohms. Now lets imagine another ...
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Thevenin and Norton Equivalent Question about Current Division
Hello, I am asked to find the Norton equivalent of this circuit. So I did the calculations with source transformation. I did all the steps right but I am sort of confused on the last step to get the ...
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For the sake of finding the thevenin and norton equivalent circuits, how do I calculate the Isc and Voc in this circuit?
I was taught to do it with a longer method which I understand, by moving the Va and Vb terminals up to the source and gradually moving further back while finding equivalent circuits. I want to do it ...
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Confusion with Norton's equivalent
I was trying to find Norton's equivalent for the following circuit from A to B:
So I decided to start by using the fact that \$R_{th}=V_{OC}/I_{SC}\$, and found out that \$V_{OC}=0\$ so I decided to ...
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Can you help me understand this Node Analyzing Method in Thevenin Norton Circuits
This is the circuit, and the node method solution is:
Where did 280 come from? why is there two Vt/60 ? Please help me
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Why there is voltage differences in this question and how can I add up resistors to complete voltage?
Can you just explain to me the logic of this question because I am a bit confused here.
Why do we have a 120 volt and 30-volt value? My take out is this: there is a current flowing through 120-ohm ...
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Can you explain this solution to find Isource (Thevenin Norton)
I know it is current division method but how is it applied ?
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How to use nodal or mesh analysis with a current source?
This is my circuit:
The task is to get \$V_0\$ using Norton's theorem. My problem here is how current sources work.
I tried to use mesh analysis first, but didn't know how to.
Then I tried to use ...
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Find the Norton equivalent of circuit using superposition
Exercise 3.23a of Kaufman, 2005:
Find the Norton equivalent of the circuit in Figure 3.125:
I've run into some trouble when answering this question. The Norton equivalent resistance is clearly \$R_N=...
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Why does a source transformation not work in this case?
Circuits 2 and 3 give 3.8 mA as the current through R1 [2k Ohm resistor]. However, why is it not possible to transform circuit 3 to circuit 1?
what I did:
I tried simulating circuits 2 and 3 below to ...
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Resistor in parallel with a short circuit. Will current flow through it?
I'm trying to find the Isc of this circuit seen by the capacitor at t > 0 so I could find the Rth and get the circuit's time constant. If I make the capacitor a short circuit, it will be in ...
user263783
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Thevenin Equivalent Circuit of Ideal Independent Current Source
This is dual to <Norton Equivalent Circuit of Ideal Independent Voltage Source>. I have wrote it to answer a problem <click here> but I need to make it independent which requires ...
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Norton Equivalent Circuit of Ideal Independent Voltage source
For some purpose I need to derive the equivalent Norton circuit of an ideal independent voltage source. I found that it is impossible to do it. I describe the way I found it below and need comments, ...
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LM359 Quartz Crystal Oscillator Schematic not working
I'm trying to design a Crystal Oscillator based on the LM359 chip and the schematic on the datasheet but it's not working. It does not do anything.
What I'm doing wrong? I changed some components ...
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How to find total voltage in a two loop circuit
I've been going through the DC Theory textbook by NJATC to learn basic electronics so I can better enjoy my guitar tinkering. But I also want to be able to repair or maybe even build effect pedals and ...
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Why will i calculate the wrong current when i transform part of circuit to Thevenin circuit?
Here is the circuit in this question
The original circuit is in the left hand side,as we can see,there are two norton circuits in it,so i transform them to the thevenin equivalent circuit,just like ...
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How would I solve for the Norton Current of this circuit?
How do I solve for the Norton Current of this circuit? The resistance is easy enough, but the box with the resistor and current source is tripping me up. How could I solve for that?
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Circuit with dependent & independent voltage sources - Why not matching?
I've just solved this exercise by hand and then I have compared the results with PSIM Simulator and there's a difference of e-006 in the Voltage Vo. I just can't understand where's the mistake, I have ...
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Norton Equivalent and current convention
Consider that we are trying to find the Norton equivalent of a certain circuit . According to my understanding , while finding the short circuit current or the Norton current , we should point it ...
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Thevenin equivalent with mutual inductance
I was practicing for the exam I found a problem in the book as follow :
I want to find the voltage Vth so here is what I did :
When finding the Vth I didn't ignore the dependant voltage source in ...
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How to use KCL or KVL to find the \$V_{AB}\$?
Find the \$V_{AB}\$
\$V_{AB}=(2\times 10)+(-10)+[(1 \times 5)+(1+2)\times 5]=25V\$
simulate this circuit – Schematic created using CircuitLab
Now if i want to use KVL or KCL to calculate the \...
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how do we find the Norton equivalent circuit current of the both node ,a-b
Determine the Norton equivalent circuit current of the both node ,a-b, of 9 ohms resistors
simulate this circuit – Schematic created using CircuitLab
Solution:
simulate this circuit
\$V=RI=(...
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Why do we suppress the input when calculating the Norton/Thevenin resistance?
When we calculate the thevenin/norton resistance of a 1-port circuit, we suppress the independent inputs, be it voltage or current. But, my textbooks do not explain as to why we do this.
So my ...
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Norton op-amps advantages
I have been reading about Norton operational amplifiers, I got a good idea of how they work, even at the transistor level, I understand that difference current input = voltage output.
What I have been ...
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