# 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.

87 questions
Filter by
Sorted by
Tagged with
84 views

### 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
104 views

### 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 ...
• 801
70 views

### 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 ...
111 views

### 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 ...
• 107
55 views

### 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 ...
• 297
65 views

### 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
72 views

### 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 ...
56 views

### Can you explain this solution to find Isource (Thevenin Norton)

I know it is current division method but how is it applied ?
1 vote
156 views

### 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 ...
1 vote
109 views

• 551
31 views

### 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 ...
• 143
2k views

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 ...
• 2,621
58 views

### Finding the current trough resistor in a closed mesh

In a closed mesh we have: simulate this circuit – Schematic created using CircuitLab The question is to determine the current through the 2nd resistor $\text{I}_x$. My work: I think of ...
153 views

### Solving Thevenin and Norton Circuit

simulate this circuit – Schematic created using CircuitLab How to solve this circuit for Thevenin and Norton circuit given RL in the circuit. My guess is to remove RL (open circuit). But I'm ...
• 101
1 vote
362 views

### Thevenin equivalent of the following circuit

So...I have to find $v0$ using exclusively Thévenin/Norton equivalents. I am completely lost since in this case I have a dependent voltage source which relies on $v0$ itself. $v1,a,R1,R2$ and ...
• 135
1 vote
161 views

### Finding Norton voltage and resistance and max power

My directions for this problem are to find the power delivered when RL=3 and then find the maximum power. simulate this circuit – Schematic created using CircuitLab I found Rth = R1//R2 = 1 ...
• 35
1 vote
204 views

### Thevenin's theorem equivalent circuit

I had an homework to do for school. One of the questions of this homework was to find the equivalent of a circuit using Thevenin's theorem. Unfortunately, my teacher told me that I didn't get the ...
74 views

### What is the Thevenin Norton equivalent of the folloing circuit

I am trying to find the Thevenin Norton equivalent of the folloing circuit. I am familiar with the procedure. However, when I am taking off the voltages to calculate the equivalent resistance, I am ...
• 591
857 views

### Calculating Short Circuit Current when Nortonizing a Circuit

My objective is to find v (voltage drop across 8 ohm) in the below circuit. I was able to thevenize the circuit successfully (V thevenin = 12 V and R thevenin = -2 ohm) and find v. But I find it ...
• 15
435 views

### How to apply Thevenin's Theorem to this circuit?

I have been trying to solve this question with either Thevenin's Theorem or Norton's Theorem but I got stuck at finding the Vth . Load Resistor is 5Ohm resistor in the middle . I have removed the ...
• 15
838 views

### Norton <-> Thévenin equivalents with complex impedances

Given a Thévenin equivalent circuit, it's pretty easy to convert to the Norton equivalent, or vice versa: simulate this circuit – Schematic created using CircuitLab Although the value of the ...
• 55.3k
76 views

### why would Ix would be 0?

Current coming out of the 5V source would never be 0 so what would make the current coming out of the 3v dependent source 0?
1 vote
112 views

### Understanding some mistakes, when trying to find the Thevenin equivalent

I was asked to find the Thevenin-Norton equivelant, and I got stuck on some things that I can't quite understand. I don't know if i need to be more specific. What's wrong with the following? And why ...
498 views

### Combining perfect voltage and current sources

I am attempting to reduce the circuit shown into a form of a single voltage source and resistance in series using Thevenin and Norton conversions. I approached the problem by first considering a ...
• 33
69 views

### Norton's equivalent circuit with independent sources

I need to find the current flowing through $R_{5}$ by using Norton's theorem. What I tried to do was: Open-circuit the part of the circuit where there is $R_{5}$. Calculate $R_{n}$ by open-...
• 123
161 views

### Calculate the Norton Resistance and Current and the Thevenin Voltage of the following circuit

U=10 V, R=10 ohm I calculated the resistance as such: 1/Rt = 1/R + 1/R <=> Rt = R/2 = 5 ohm To calculate the voltage I did KVL as such: U - 2Ur = 0 <=> Ur = 5V, where Ur is the voltage in the ...
• 125
40 views

### Finding the energy over the capacitor in DC

I tried using Thevenin to solve this and found Rth = 3 and Vth = 12 but this is way off the correct energy of the capactor (the energy is 4J).
1 vote
144 views

### Finding Thevenin equivalent circuit and using that circuit when terminals inside circuit

Sorry for the bad title, but I'm trying to get the Thevenin equivalent circuit and then use that circuit to calculate a current i. The problem I'm having is I'm not sure what to get the open circuit ...
• 279
618 views

### Norton equivalent resistance of zero?

I am trying to analyze this circuit using norton. Load (20 Ω) is connected between A and B. I have removed the load and calculated the norton current to be -2A. Now I try to calculate the norton ...
• 767
75 views

### Thévenin equivalent of a Norton equivalent

A very simple question. When solving circuits, and you need to solve it using the mesh analysis, you want the circuit to only have voltage generators.I wonder if for an independent current generator ...
• 137
507 views

### Do a Thevenin source and its equivalent Norton source always supply equal power?

Power supplied by a Thevenin source $$P_{Thevenin} = V_{Th}^2 \frac{1}{R_{Th}+R_L}$$ Power supplied by its equivalent Norton source \begin{eqnarray} P_{Norton} & = & I_N^2 \frac{R_{Th} ...
39 views

### Question with using Isc -> Any errors?

For the picture below, the answer for Voc is 7.5V, but when I add an Isc at terminals AB, and use KCL, I get Voc = 3.75V. Here are my steps/equations: (1) 15 = 4I1 - 2Isc (2) 0 = 3Isc - 2I1 I get ...
81 views

### Thevenin Norton Concept

For the below circuit, assuming I add a short circuit between terminals A and B (let's call it Isc), howcome I can't use a KVL equation for the left loop, along with the right loop (IsR1 - IscR2 = 0)?
1 vote
168 views

### Incremental Circuit Of This Amplifier

Can anyone explain to me the incremental equivalent circuit of this amplifier? the solution is this : I have some trouble understanding the resistor RB placement and also the Resistor R1 and R2.
802 views

### Thevenin's equivalent

Rth = (10+10)||5+16=20 ohms. I think the Thevenin's equivalent voltage is across the 5 ohms resistor which was found to be 11.2 volts Applying nodal analysis but the answer is supposed to be -16.4 ...