Simplifying Complex Circuits: Using Delta to Y Transformation

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The discussion focuses on using the Delta to Y transformation to simplify a complex circuit, particularly when traditional series and parallel methods are ineffective. The presence of a 10 and 8 ohm resistor complicates the transformation, but recognizing that points c and f are the same node may provide a solution. Participants suggest redrawing the schematic for clarity and exploring the resistance between specific nodes to facilitate problem-solving. The conversation emphasizes the importance of visualizing the circuit correctly to apply the current distribution method effectively. Overall, the Delta to Y transformation can be a viable approach if the circuit is properly analyzed.
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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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