What Are Alternative Methods to Wye-Delta for Calculating Equivalent Resistance?

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SUMMARY

The discussion focuses on alternative methods for calculating equivalent resistance in a circuit, specifically addressing the use of wye-delta transformation. A participant successfully solved the problem using this method but sought additional techniques. Another contributor highlighted that by visualizing the circuit differently, specifically by flipping the upper half of the configuration, the four 4Ω resistors can be simplified, allowing for a more straightforward calculation. This approach emphasizes the importance of circuit visualization in solving resistance problems.

PREREQUISITES
  • Understanding of wye-delta transformation in circuit analysis
  • Basic knowledge of equivalent resistance calculations
  • Familiarity with circuit visualization techniques
  • Concept of series and parallel resistor combinations
NEXT STEPS
  • Explore advanced techniques for circuit simplification
  • Learn about Thevenin's and Norton's theorems for equivalent circuits
  • Study the impact of zero-resistance components in circuit analysis
  • Investigate the use of simulation tools like LTspice for circuit analysis
USEFUL FOR

Electrical engineering students, circuit designers, and anyone interested in enhancing their skills in circuit analysis and equivalent resistance calculations.

arpon
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Homework Statement


upload_2015-1-13_16-23-45.png

Calculate the equivalent resistance between A and B.[/B]

Homework Equations

The Attempt at a Solution


I solved this problem by using wye-delta transformation. Is there any other method to solve this? The speciality in this circuit, I noticed, two of resistances are 0.[/B]
 
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Yes there is. Look at the square on the right. They try to confuse you by drawing it this way, but if you flip down the upper half, you see that the four 4 ##\Omega## resistors are in fact all ...
 
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BvU said:
Yes there is. Look at the square on the right. They try to confuse you by drawing it this way, but if you flip down the upper half, you see that the four 4 ##\Omega## resistors are in fact all ...
upload_2015-1-13_19-46-52.png

So, I can think C and E as the same point. D and F are the same point too. So, I can change this circuit intothis one:
upload_2015-1-13_19-55-4.png


Am I right?
 
That's the idea, yes.
 
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