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Questions tagged [nodal-analysis]

A circuit analysis method in which Kirchhoff's circuit laws are used to determine the voltage between all nodes (points where circuit elements connect) and the current through all elements. Always use in conjunction with the "circuit-analysis" tag.

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2 votes
3 answers
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What should I do to find I_c in the circuit?

I have tried to perform Supernode Analysis on the circuit. Regardless of how many times I tried, I got incorrect results. I tried to form a system of equations, then created matrices and solved them ...
HMTchester's user avatar
0 votes
2 answers
80 views

Trying to solve a circuit using superposition method. Problem Hayt. Engineering Circuit Analysis (9th?)

My Solution: I am trying to solve this problem using superposition method on two current sources but I keep getting the answer wrong. I first set 40µA to zero and redraw the circuit by removing the ...
Math Samurai's user avatar
2 votes
1 answer
69 views

Difference between the two ways to state KVL

I am reading LINEAR CIRCUIT ANALYSIS by DeCarlo and Lin. The books states KVL in two ways. I wanted to ask if the second way offers extra functionality or simplifies some abstractions. Or it is just ...
Pranstein's user avatar
1 vote
1 answer
116 views

Adjacent super nodes, one connected to a reference node

In this circuit, node G was set as the reference node. I'm still new to nodal analysis, and I'm not entirely familiar with it. From what we were taught, we should only use KCL at the super node that ...
SaberSteel's user avatar
3 votes
1 answer
193 views

power supplied by 1V source

Need to find power supplied by 1V source. This circuit is under supernode section. Till now i have only solved supernode circuits in which only a voltage source is present between two nodes. So it was ...
suffer's user avatar
  • 33
2 votes
2 answers
353 views

What will be the voltage at node X at steady state in this RC circuit?

My thinking is that at t = 0 s, at the sudden change in Vs, the capacitor will act as voltage source of 2 V and thus applying KCL at node X, we can get a Vx = 4 V. My confusion is what will happen at ...
Sayan Dutta's user avatar
1 vote
1 answer
110 views

Getting two different equations for mesh and nodal analysis separately. Where I am going wrong?

I am trying to get the same current equations through mesh and nodal analysis but ending up getting a different one.
anentertainingtechie's user avatar
2 votes
3 answers
237 views

How to define the direction of current in nodal analysis

I don't know how to define the direction of current. I am learning nodal analysis. I have seen that defining the direction is very important. Please help me to understand it . I will be grateful if ...
Argha Nilanjon Nondi's user avatar
1 vote
5 answers
192 views

Nodal Analysis: Correct/Standard Method?

Nodal analysis is mostly quite straightforward and most people that explain/teach it do a lot of things similarly, except for this one thing that seems pretty important: assuming the direction of ...
InoperativeAttenuator's user avatar
2 votes
2 answers
197 views

How should I go about doing a mesh analysis of a circuit with BJTs?

In the attached photo, is a circuit I wish to analyze. First I want to do a DC analysis to get an idea of the behavior of the circuit in normal operation. My first approach was to do a node analysis, ...
sync_this's user avatar
1 vote
1 answer
114 views

Find voltages and current in polar form

I would like to check whether I got my answer right or not. Here's my attempt at the problem:
Hisham Hashim's user avatar
2 votes
2 answers
85 views

Voltage Division and Nodal Analysis

If I want to use nodal voltage analysis to solve this problem: find the Thevenin impedance, deactivating the independent source and adding a test voltage source of 1V (assume phasor angle to be zero). ...
Fady Salah's user avatar
1 vote
1 answer
151 views

How to determine the power in resistors R1 and R2 in this complex circuit?

I'm trying to solve the circuit shown in the attached image, where I need to determine the power of resistors R1 (4 Ω) and R2 (6 Ω). I’ve attempted to use mesh analysis, but the results don’t match, ...
Turing's user avatar
  • 73
0 votes
0 answers
52 views

KVL/KCL DC and AC Node Analysis for NPN avalanche circuit?

I am a software engineer who works very close to the hardware level of devices. I've built three versions of RF white noise generators (BFR93AW, 2N5770, and 2N3904) to help tune some antennas and ...
A Bit of Help's user avatar
-3 votes
1 answer
162 views

how to calculate hysteresis for the attached circuit [closed]

I got the above circuit from the following links. The original creator is the username sghioto in the links https://forum.allaboutcircuits.com/threads/circuit-below-what-is-purpose-of-r5.204776/ https:...
hhsting's user avatar
  • 49

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