# Questions tagged [thevenin]

Thévenin's theorem for linear electrical networks to simplify the analysis of complex electrical circuits.

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471 views

### Thevenin equation of a circuit with two voltage sources, one on an open circuit

I am incredibly sorry, as I'm sure this specific example has been asked before, but I missed the class on it and the professor hasn't yet uploaded the video to his website. I need to know how to find ...
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).
94 views

### Modelling a temperature measurement system

The accuracy of a measurement system can be significantly reduced by loading effects in the system. A thermocouple is used together with an indicator to measure temperatures. The thermocouple has a ...
52 views

### Thevenin and resistance problem

I had a problem finding the Thevenin equivalent resistance of this circuit. If anyone could help me, I would be very thankful.
69 views

### Thévenin's theorem exercise, resistances

I've some problem identifying the $R_{th}$ simulate this circuit – Schematic created using CircuitLab Removing the load and short circuiting the Voltage source we get : simulate this ...
59 views

### Source transformation violation

Using thevenins or norton theorem, we can easily find current through the resistor as 1 amps. But if we convert the current source to voltage source , current turns out to be zero amps . Why?
62 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 ...
63 views

### Circuit Analysis in Non-Closed Systems

So I'm fairly confident in my ability to do circuit analysis on closed circuits, that is, circuits where all loops, sources, and elements are given. However I still find myself getting stuck on ...
467 views

### how can we solve a circuit with two opposing voltage sources using thevenin theorem

i have been asked to solve a circuit using thevenin theorem but when i try to solve it to find Vth by loop analysis, i realized that both voltages are in opposing directions and i can't understand ...
100 views

### Struggling with Thevenin Equivalent Problem

I had asked this question before and thought I had found the help I needed, but unfortunately I found myself unable to solve the problem fully when I attempted it. The problem: For the Thevenin ...
343 views

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### Thevenin Voltage and Resistance Calculations

In order to calculate R_th, you have to made all voltage and current sources equal to 0 (creating open circuits at current sources and shorts at voltage sources), so you will wind up with only ...
59 views

### how to calculate voltage thevenin [duplicate]

I do Kirchhoff law then I found I1=232uA, I2=158uA, I3= 0,074uA now I want to calculate voltage Thevenin (voltage between A and B)? I do like this 0.000232 * 10000=3.23 but I 3.23 not correct Can ...
922 views

### how to calculate voltage between two points [closed]

how to calculate voltage between A and B?
242 views

### Calculating gain of ICF amplifier

I'm designing a circuit with an ICF (indirect current feedback) amplifier, and am trying to calculate the gain of the resultant circuit. Using the AD8237 I followed the example here when designing ...
739 views

### Thevenin's theorem BJT derivation question

I'm trying to convert the left circuit to the one on the right using Thevenin's theorem, but I'm not understanding how this is done for this circuit. From my understanding of Thevenin's theorem: (1)...
189 views

### Is this Thevenin equivalent circuit correct?

I am asked to find the equivalent Thevenin circuit between nodes A and B of the following problem, removing R1. I have attached my work because I have no idea if this is completely correct or totally ...
112 views

### Finding voltage thevenin

I calculated R thevenin to be 5.322 ohms, but I don't know how to get a voltage after this step. I tried to use node voltage equations since V thevenin is he voltage across the terminals, but it didn'...
202 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 ...
956 views

### Calculate the Thévenin Voltage (Vt) and Thévenin Resistance (Rt) equivalent of the circuit below

I want to find the Thevenin equivalent circuit but because of the positioning of the nodes a and b I can not visualize it correctly and that causes me to struggle. How wil I calculate the Thevenin ...
867 views

### I want to find voltage across 5 ohm resistance by thevenins theorem

i want to know that wether my answer is right or wrong and if it is where?
842 views

### Calculate Thevenin voltage in a Common Emitter Circuit

I am confused on how to proceed with the above problem. I have solved many problems on thevenin voltage but never faced one involving BJT. Please help me with this problem. EDIT: I have 2 approaches ...
222 views

### Thevenin Equivalent Problem

So to get started on part a I am finding the REQ of the circuit by shorting it. Now to get from A to B in this circuit that is having R4 and R5 in series with R3 in parallel so REQ = (1/900 + 1/300)^-...
304 views

### Find the Thévenin equivalent circuit with the output terminals A and B

Im not sure where to start with this question. I dont know what to do with the dependent source and im not sure what I can do with terminals A and B.