Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [thevenin]

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

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How to find the Thévenin voltage?

How do I find the Thévenin voltage in this diagram? In parallel the voltage remains the same, so should it be 10 volts across AB? I am given that since \$R_3\$ and \$R_4\$ are not connected on one end, they do not carry current. Therefore, they…
user1799
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Thevenin Method

I need help solving the following circuit using the Thevenin method: simulate this circuit – Schematic created using CircuitLab The unknown in this problem is current i5, the correct answer is -1A. I have already solved for the R(thevenin) by…
Siddharth Murpani
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Confusion about Thevenin's theorem for linear circuits with non-linear elements

My question is about **linear circuits** which has non-linear elements. When I read about Thevenin's theorem, all explanations say that it is basically about representing a linear circuit as a voltage source and an output impedance. And right after…
floppy380
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How to find Thevenin equivalent resistance with dependent sources?

For this problem, Vs and Io are not given. Beta is equal to 8. I want to learn how to find the Thevenin equivalent resistance with respect to terminals a and b. The correct answer is 27.33 kilo-ohms, but for the life of me, I can not figure out…
snooFlamingo
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Finding Thevenin Impedance of a circuit

For this circuit, I am trying to find the equivalent Thevenin impedance by disabling the sources and calculating the resistance between points A and B. What happens after the voltage source is replaced with a wire? I have the current source being…
David M
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Choosing voltage divider resistor values

Above is the circuit in question. R1 and R2 forms a voltage divider to supply desired current for the load. On the left side there is the original circuit and on the right side its Thevenin equivalent. Lets say the ideal supply voltage is known and…
user16307
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A question on Thevenin and output impedance

Above figure shows the transformation of a circuit to its Thevenin equivalent. Imagine this is a power supply and A is the + terminal. In reality the real circuit model is the one on the left side and just before the A terminal I circled the…
user16307
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Calculating Thevenin equivalent circuit with series current source

Wikipedia writes this about calculating the output current \$I_{AB}\$ when finding the Thevenin equivalent: 2a. Replace voltage sources with short circuits, and current sources with open circuits. 2b. Calculate the resistance between terminals A…
Karin
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Thevenin voltage for a simple circuit

Trying to find the Thevenin equivalent voltage for the circuit on the picture below. This voltage is supposed to be found at the round dots to the very right in the circuit. According to the answer sheet the answer is supposed to be 16V for the…
BoroBorooooooooooooooooooooooo
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Thevenin Equivalent Circuit

Been solving this for hours please help. My answer is written on ink. The correct answer is given. I tried Nodal Analysis and got Va = -100 V at node A (beside -100V) and then KCL@A: -0.01V1+Va/20k = 0 ; Since Va=-100, V1 = -0.5V <-- from here I…
Brian Sanchez
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Thevenin equivalent circuit of a battery

I am a newbie to electronics so I need some help. I was reading about Thevenin equivalent circuits and I am pretty confused. I have the question like this: I have a 2V battery which draws a maximum of 10A. What's the Thevenin equivalent circuit of…
user33796
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Thévenin equivalent with a dependent source

I'm working in a circuit with some switches and it has the same configuration but different elements between ab. I am not sure if is possible to get a Thévenin equivalent of the next strange subicircuit to simplify calculations: simulate this…
Chuz
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I'm trying to find Vth, somehow my Vx gets cancelled out but my Vth is wrong

I'm trying to find out how to solve for the Thevenin equivalent. I tried to use a 1A test source, but it didn't seem to work. Anyone can help please? Much appreciated.
Steve
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How to get Thevenin Resistance of this circuit?

I have the following circuit: And i need to calculate the Thevenin Resistance. when I shorted the source and removed the R5(Load resistor), I got I thought the result was (R1 || R3) || (R2 || R4) since R1 and R3 are joined at both ends and the…
ESCM
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Find Thevenin equivalent of given circuit with two voltage sources

I have to find Thevenin equivalent circuit between M and N. So I understand that I have to get rid of R7, and find voltage of Vm and Vn, then Vth = Vm-Vn. But I don't understand how to calculate it. The two opposite voltage sources trip me out. As…
Nam Hoang
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