Simplifying Complex Circuits: Using Delta to Y Transformation

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Homework Help Overview

The discussion revolves around simplifying complex circuits using the Delta to Y transformation, specifically focusing on finding the resistance between terminals a and b. Participants express uncertainty about the applicability of the transformation due to certain resistor configurations.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants question whether the Delta to Y transformation is the appropriate method to simplify the circuit. There are discussions about the impact of specific resistors on the transformation and the potential for using series and parallel simplifications. One participant suggests considering node connections as a potential simplification strategy.

Discussion Status

The discussion is ongoing, with participants exploring various methods and interpretations. Some guidance has been offered regarding redrawing the circuit for clarity, and there is an acknowledgment of the complexity introduced by the schematic's layout.

Contextual Notes

Participants note that the circuit schematic may be confusing, which could hinder the application of simplification techniques. There is also mention of specific resistor values affecting the transformation process.

jisbon
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Homework Statement
Find resistance across a and b terminal
Relevant Equations
-
1597371173219.png

Not sure what I can do to proceed on here: Should I be using the Delta to Y transformation? Wouldn't be able to simplify using simple series and parallel circuits, and hence am looking for any clues I might need to solve this problem.
PS: ForDelta to Y transformation, it seems that the 10 and 8 ohm resistor seems to be preventing me from doing this way.
 
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Points c and f are connected by a wire, hence are in reality the same node. Does that suggest a way forward?
 
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Maybe you can solve it like this (In China we called it Current distribution method )
IMG_20200814_114359.jpg
 
jisbon said:
Homework Statement:: Find resistance across a and b terminal
Relevant Equations:: -

Wouldn't be able to simplify using simple series and parallel circuits
Yes, I think you can. The most difficult problem here is that the schematic is drawn in a confusing way. Redraw it so it makes more sense to you.

@gneill has given you a way forward, pursue that. For example what is the resistance between node e and node cf?
 

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