Nodal Analysis For Circuits class

Click For Summary
SUMMARY

The discussion centers on the application of nodal analysis in circuit theory, specifically addressing the calculation of current (I_o) between nodes V_3 and V_4. Participants confirm that I_o is calculated as (V_3 - V_4)/1k, emphasizing the importance of including all relevant currents in the nodal equations. A correction is noted regarding the nodal equation for V_3, which must account for the current from a 45V independent voltage source. The validity of the calculations presented is affirmed by peers in the discussion.

PREREQUISITES
  • Understanding of nodal analysis in electrical circuits
  • Familiarity with Ohm's Law and current calculations
  • Knowledge of independent voltage sources and their impact on circuit analysis
  • Basic skills in interpreting circuit diagrams
NEXT STEPS
  • Review the principles of nodal analysis in circuit design
  • Study the impact of independent voltage sources on circuit behavior
  • Practice solving nodal equations with varying circuit configurations
  • Explore advanced circuit simulation tools like LTspice for validation of calculations
USEFUL FOR

Electrical engineering students, circuit designers, and anyone seeking to enhance their understanding of nodal analysis in electrical circuits.

DefaultName
Messages
179
Reaction score
0

Homework Statement



Hi guys, I solved this problem out. I'm just curious as to see if my work is valid. I strongly believe it is, but perhaps you can help me.

I do have a quick question... once I've found all the voltages at specific nodes, I_o is the difference of the voltage / resistance between the nodes. Now, if you look at the diagram, would it be V_4 - V_3 or vice versa? I'm guessing V_3 - V_4, just to satisfy PSC. (notice, in the bottom right corner, I left the V subscripts as blank, for the time being).

Here's the work:

http://img100.imageshack.us/img100/4870/untitledwq1.png
 
Last edited by a moderator:
Physics news on Phys.org
Your I_x should have been (V_1 - V_2)/1k.

I think that you nodal equation for V_3 is incorrect because you are ignoring the current in the branch that contains a 45V independent voltage source.

And yes, I_o = (V_3 - V_4)/1k.
 

Similar threads

Help with Circuit Nodal Analysis
  • · Replies 2 ·
Replies
2
Views
2K
Engineering Why Is Nodal Analysis Confusing in This Circuit Example?
  • · Replies 7 ·
Replies
7
Views
2K
Engineering Unable to model Transresistance amplifier with feedback correctly
  • · Replies 1 ·
Replies
1
Views
2K
Electric Circuit Analysis, Nodal Analysis and finding Voltage.
  • · Replies 2 ·
Replies
2
Views
2K
Engineering Nodal Analysis of this Circuit using the Laplace Transform
  • · Replies 4 ·
Replies
4
Views
4K
Solve Vo: Voltage Nodal Analysis w/ KCL Equation
  • · Replies 5 ·
Replies
5
Views
3K
Engineering Why is the voltage source high potential into node 1 at -12 V in this op amp problem?
  • · Replies 15 ·
Replies
15
Views
3K
Find voltage using nodal analysis
  • · Replies 4 ·
Replies
4
Views
2K
Engineering Solve this Circuit using both Nodal Analysis and Mesh Analysis
  • · Replies 15 ·
Replies
15
Views
4K
Engineering Use voltage nodal analysis to solve for the current flowing in this AC circuit
  • · Replies 2 ·
Replies
2
Views
2K