What is the equivalent resistance of this circuit?

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Homework Help Overview

The discussion revolves around finding the equivalent resistance of a complex circuit involving multiple resistors. Participants are exploring methods to simplify the circuit and apply relevant electrical principles.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss redrawing the circuit and labeling nodes and resistors to better visualize the problem. Some suggest using symmetry to simplify the analysis, while others express uncertainty about identifying appropriate paths and applying Kirchhoff's laws. There are mentions of using delta-star transformations and setting up systems of equations based on currents and voltages.

Discussion Status

The discussion is ongoing, with participants actively sharing insights and suggestions. Some have provided guidance on using symmetry and Kirchhoff's laws, while others are still grappling with the initial steps of the problem. There is a mix of attempts to apply different methods, and no consensus has been reached yet.

Contextual Notes

Participants are working under the constraints of homework rules, which may limit their approaches. There is an acknowledgment of the complexity of the circuit and the potential need for multiple equations to solve for the equivalent resistance.

  • #31
Pranav-Arora said:
I know its too late to reply to this thread now. I thought instead of creating a new thread, I will complete this one.

Thanks ehild, your trick was really helpful for the first question. :smile:

I gave a try to the second question but got stuck at the last step. The circuit is symmetrical about the line AB so I folded it and transformed it to as shown in the attachment. Now I am unable to proceed ahead. :(

EDIT: I have figured it out. It was easy once I applied the delta-Y transform. Thanks once again. :smile:
Yes.

There is a Δ with three equal resistances. That's easy to convert to a Y .
 

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