Finding Current in a Delta Transformation Circuit

Click For Summary
SUMMARY

The discussion focuses on solving a circuit problem involving a delta transformation to find the current over a 1-ohm resistor. The user successfully calculated the equivalent resistance and total current, ultimately determining the current through the 1-ohm resistor to be I = 0.1904 A. A suggestion was made to utilize Kirchhoff's Current Law (KCL) for a more straightforward solution approach. The transformation between T-form and delta-form circuits was a key aspect of the problem-solving process.

PREREQUISITES
  • Understanding of delta and T-form circuit transformations
  • Familiarity with Kirchhoff's Current Law (KCL)
  • Basic knowledge of equivalent resistance calculations
  • Ability to analyze electrical circuits
NEXT STEPS
  • Study delta and T-form circuit transformations in detail
  • Learn how to apply Kirchhoff's Current Law (KCL) in circuit analysis
  • Explore techniques for calculating equivalent resistance in complex circuits
  • Practice solving circuit problems involving multiple resistors and configurations
USEFUL FOR

Students studying electrical engineering, circuit designers, and anyone looking to enhance their skills in circuit analysis and transformations.

danilo_rj
Messages
10
Reaction score
0

Homework Statement


http://i634.photobucket.com/albums/uu67/danilorj/circuito.jpg
Above is the picture of the circuit I'm trying to solve. The problem asks to find the current over the resistor of 1 ohm.


Homework Equations





The Attempt at a Solution


Well, I found the equivalent resistance of the circuit and thus the total current. But to do this, I transformed the T-form of the circuit between the resistors 70,1 and 20 ohms in a delta-transformation. My doubt is when I know the current in each branch of the delta-form how am I suppose to find the current in each branch of the t-form? What is the relation of current between them?
 
Last edited by a moderator:
Physics news on Phys.org
danilo_rj said:

Homework Statement


http://i634.photobucket.com/albums/uu67/danilorj/circuito.jpg
Above is the picture of the circuit I'm trying to solve. The problem asks to find the current over the resistor of 1 ohm.


Homework Equations





The Attempt at a Solution


Well, I found the equivalent resistance of the circuit and thus the total current. But to do this, I transformed the T-form of the circuit between the resistors 70,1 and 20 ohms in a delta-transformation. My doubt is when I know the current in each branch of the delta-form how am I suppose to find the current in each branch of the t-form? What is the relation of current between them?


Welcome to the PF, danilo. Wouldn't it be easier to just solve the circuit using Kirchoff's Current Law (KCL) equations? That would be my first approach.
 
Last edited by a moderator:
That's a nice idea, I haven't thought that. Well, I found the current over the resistor of 1 ohm as being I = 0.1904 A. I would appreciate If you could check this answer for me.
 

Similar threads

Engineering Analyzing the inductor current in the circuit
  • · Replies 1 ·
Replies
1
Views
2K
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
Engineering Question on basic circuit analysis
  • · Replies 4 ·
Replies
4
Views
2K
Engineering Step response of RC circuit with independent voltage and current sources
  • · Replies 7 ·
Replies
7
Views
3K
Complex RLC Circuit Problem (System of diff eqs)
  • · Replies 6 ·
Replies
6
Views
3K
Calculating Current in a Series RC Circuit
  • · Replies 4 ·
Replies
4
Views
3K
Engineering Finding the transfer function for this circuit
  • · Replies 4 ·
Replies
4
Views
2K
Engineering Why Is Nodal Analysis Confusing in This Circuit Example?
  • · Replies 7 ·
Replies
7
Views
2K
Engineering How do I find Vth with the node voltage method?
  • · Replies 10 ·
Replies
10
Views
4K
Engineering Solve Delta-Wye Circuit: Find R3, R12 & R13
  • · Replies 7 ·
Replies
7
Views
4K