All Questions
Tagged with resistance thevenin
51
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How to find current for Thevenin equivalent circuit
I'm trying to figure out how to calculate the Thevenin equivalent circuit for a voltage divider like the following one:
I understand that V_th is obtained by opening the terminals of the output, so ...
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How to find Thévenin voltage with dependent voltage source
I am not an electrical engineer, so I lack fundamentals. I was trying to solve for the Thévenin voltage, that is Vout at the open terminals A and B, but what makes it significantly difficult for me is ...
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I don't get what I am doing wrong with this Thévenin question [closed]
I understand that the Thévenin voltage is zero because there are only dependent sources, but finding the Thévenin resistance doesn't seem to work.
My work for finding the Thévenin resistance is below. ...
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Should resistance between a and b terminals be considered when computing Thévenin-equivalent resistance?
When attempting to find the Thévenin-equivalent circuit to the left of terminals a and b in the image below, should one consider the 4.7 kΩ resistor? Why or why not?
When taking the 4.7 kΩ resistor ...
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How can I maximize the power consumed in this resistor?
simulate this circuit – Schematic created using CircuitLab
I have gotten really stuck on this question. The question is:
Determine R3 so that maximum power is consumed in R3.
What is that ...
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Limitation of the Thevenin's equivalent circuit
simulate this circuit – Schematic created using CircuitLab
Thevenin's theorem independently derived in 1853 by the German scientist Hermann von Helmholtz and in 1883 by Léon Charles Thévenin (...
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Thevenin's resistance with a dependant source
I have this circuit for which we must find the Thevenin resistance in considering the load is \$R_L\$. For this case I calculated \$E_{th}=-\beta i_b R_4\$ by shorting the load resistor \$R_L\$ so the ...
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Equivalent resistance vs Thévenin resistance
What is the difference between equivalent resistance and Thévenin resistance?
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How to get R_THEVENIN in Wheatstone bridge?
In the simplification of a Wheatstone bridge with Thevenin's theorem when we calculate the RThevenin as in the schematic. How to explain in another way that the resistor R1 and R3 are in parallel and ...
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How can I better understand Thevenin resistance?
On the internet, it is mentioned that Thevenin's Theorem states that "Any linear circuit containing several voltages and resistances can be replaced by just one single voltage in series with a ...
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Thevenin equivalent resistance of a complex circuit
I have a complex circuit. I have found the thevenin equivalent voltage V_t, by making two equations. Its V_t=3.877 V
Now I have to find the thevenin quivalent resistance. I was thinking of short ...
user296330
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Why do we treat R1 and R2 as though they're parallel in this circuit?
I'm working on a homework problem and I need to solve for the base current Ib, and I know to do that I need to find the Thevenin equivalent at the transistor base. My professor solves for it as though ...
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What would be the Open Circuit Voltage and Thevenin Resistance in this Circuit?
I am hoping someone can help me understand Open Circuit voltage and Thevenin Resistance.
To test my understanding I created the attached circuit and ran a transient analysis using LTSpice.
With a ...
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Solving a circuit using Thevenin's theorem and superposition
I have the following circuit in an example problem from a book, where it shows you how to find the Rth and the Vth. The Vth has to be found via superposition.
The Rth solution is Rth = 103/77R, which ...
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how to find Thevenin Equivalent Voltage and Thevenin Equivalent Resistance?
pls help me solve this question it’s confusing me
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How can I find the equivalent resistance of this circuit?
I'm trying to find the Norton Equivalent circuit using Norton's Theorem for the circuit below. Since I need to find the Norton Resistance, I removed all the sources from the circuit. The problem is, I ...
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Is resistance the derivative dV/dI or the ratio V/I?
I'm trying to understand the justification for turning off independent sources when calculating the equivalent resistance in Thévenin's theorem.
This answer explains has a good explanation but it ...
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Applying Thevenin's theorem between 3 points
I'm studying about transistor polarisation and got confused by this application of Thevenin's theorem, can someone please explain why eT is between B and M and why Vcc stayed even though it's not ...
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Thevenin Resistance query
I have an amplifier model circuit where I've determined the load (speaker) voltage (using its peak power output and its resistance) and measured the open-circuit voltage.
How can I work out the ...
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Idea behind Thevenin equivalent circuit
As i know, we find a thevenin equivalent resistance by finding open-circuit voltage and short-circuit current and then divide these two. I have looked on wikipedia and other sources but could not find ...
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How do I calculate load resistance?
I'm here with yet another problem. This time I can't figure out what the question wants. I've calculated the Thévenin equivalent, however I can't work out how I should calculate the RL.
Is the load ...
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Getting Thévenin equivalent when there's a current source only
I am stuck finding the Thévenin voltage in this circuit.
What I did first is remove the current source and replace it with an open circuit. After that I got the Thévenin resistance which is the ...
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How do I apply Thevenin theorem in this problem?
Can't find the answer to this question. Am I supposed to get the voltage in the 4 kilo ohm resistor? Really appreciate it if anyone can solve this one! Here's the circuit:
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Redrawing a wye circuit
Instead of using wye delta transformation I tried redrawing the following circuit but I do not understand where I made a mistake. The circuit appears to have the same voltage current relationships at ...
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For the network shown in the figure, draw the corresponding Thévenin equivalent circuit and establish its parameters VT and RT
I can't find any examples online similar to this format, please help!
Attempt: RT = (2*5)/(2+5) = 10/7 = 1.429 k-ohms
VT = 8V + 8V = 16 V
Do you ignore the center resistor and just add the voltages ...
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Finding the Thevenin equivalent Resistance for circuit with voltage-dependent sources
A linear circuit containing two voltage dependent sources, as shown. The elements in this circuit have the following values: \$R_1 = 7.2k\$ Ohms, \$R_2 = 12k\$ Ohms, \$R_3 = 3.3k\$ Ohms, \$\alpha = 0....
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Trouble understanding thevenin's model from AoE Lab
I am using the AoE lab book to teach myself electronics. I am on the voltage divider section, and I am confused at their simplified explanation. I'd like to explain it a different way, but I am not ...
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Confused about Thevenin’s Theorem
I have a hard time trying to understand why Thevenin’s Theorem is the way it is.
As per the diagram below, I understand why we take our “Thevenin resistance” that way. But as far as the voltage is ...
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LTspice XVII solving Thevenin Resistance basics
Thevenin voltage is a snap, but how do I get R Thevenin?
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Thevenin Voltage and Resistance Problem
Please help me with this problem I have been set.
So, I have successfully used Kirchhoff's Voltage law to determine the voltages and currents across each of the resistors in question (R2 and R3). ...
user217971