All Questions
12 questions
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Need help to find Thevenin resistance and Thevenin voltage
Here is the question I am trying to solve(there are 2 things I need to find. These are Vth and Rth):
Here is my attempt: ( please check Vth if it is true )
I couldn't find Thevenin resistance at all
...
0
votes
1
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499
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Analysis circuit using Thevenin theorem
in the book "Engineering Circuit Analysis", example 5.9, i don't understand few things, hope someone can clear up for me:
Why does the dependent current can't flow through resistor 3k? If ...
- 31
3
votes
4
answers
6k
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Are there any cases where the source transformation method can't be applied?
When I tried to use the source transformation method on the 12 V voltage source I got the wrong answer. If I transformed the 2 A current source it worked just fine.
Are there any cases when deducing ...
-1
votes
1
answer
208
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Thevenin Equivalent of this mesh
simulate this circuit – Schematic created using CircuitLab
I have to calculate the resistancy value Rx, when the equivalent thevenin voltage is applied and generates a current of 2 Amperes on ...
0
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2
answers
3k
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What's the correct method to find the Thevenin Impedance in this circuit?
I cannot find the Zth in the circuit i uploaded; i calculated the correct value of Vth with the following steps:
LKC @ N1:
5 + (0.2)Vo = -Vo/(8+4j)
LKV @ the outer loop:
Vth + Vo - (4-2j)*0.2 - Vo = ...
- 3
1
vote
0
answers
506
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I'm trying to determine the Thevenin voltage of a circuit using the node voltage method
I'm trying to determine the Thevenin voltage between the terminals a and b on this circuit:
Notice that I've named the three essential nodes \$v_1\$, \$v_2\$ and \$v_3\$. I've highlighted the ground ...
- 111
3
votes
2
answers
5k
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Thevenin equivalent resistance of circuit with diagonal resistors
I'm trying to find the Thevenin equivalent for part A of this circuit:
I begin by opening the circuit at the dotted line of part A. Then I try to find \$V_{oc}\$ across the two terminals that are ...
- 215
3
votes
3
answers
531
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Thevenin analysis
I have a hard time understanding why Thevenin analysis works.
I can see the math, and I can find the equivalent resistor, but I am not sure why it is a valid analysis from a practical point of view.
...
- 491
1
vote
3
answers
535
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Parallel resistor not affecting rest of the circuit
I have been asked the following question:
The resistance, r, is not known in fig(1a), why does its value not affect potential at b?
By Thévenin's theorem, any arbitrary voltage source can be ...
- 223
0
votes
1
answer
2k
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Thevenin equivalent with dependent and independent generators
Considering the following circuit
When calculating the Thevenin equivalent, I calculate the Thevenin resistance value Rth.
Why do I have to consider the controlled voltage generator?
And ...
- 157
4
votes
1
answer
7k
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Questions about Thevenin's Theorem
I am reading up on Thevenin's Theorem and this has prompted a few questions that I hope somebody will be able to answer.
This is the tutorial I am reading.
The circuit below is then given as an ...
- 227
3
votes
1
answer
18k
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How do I decide which method to use in circuit analysis?
I'm an Electrical Engineering student, and circuit analysis can be really confusing to me. I sort of understand the concepts of solving circuits, but I don't really know when to use which method. Are ...
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