How to Analyze a Wheatstone Bridge with Inductances?

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Homework Help Overview

The discussion revolves around analyzing a Wheatstone bridge that includes inductances. Participants are attempting to apply circuit analysis techniques, including junction and loop rules, to solve the problem.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • The original poster attempts to use junction and loop equations but encounters redundancy in their results. They express uncertainty about the validity of their assumptions regarding current relationships. Other participants share their struggles with the problem and seek collaborative input.

Discussion Status

The discussion is ongoing, with participants sharing their experiences and frustrations. Some have attempted various approaches without reaching a solution, while others are looking for collaborative efforts to explore different ideas.

Contextual Notes

Participants mention working in groups and express that they have not found a resolution despite multiple attempts. There is a sense of collective struggle with the problem, and some participants are reaching out for further assistance.

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Homework Statement



PS2-1.jpg


Homework Equations


Assume we have Vab.
Junction Rule:
I1 = I3 + I4 => I'1 = I'3 + I'4
I5 = I2 + I3 => I'5 = I'2 + I'3
Loop Rule:
V - L1I'1 - L4I'4 = 0
-L1I'1 - L3I'3 + L2I'2 = 0
V - L1I'1 - L3I'3 - L5I'5 = 0
V - L2I'2 - L5I'5 = 0

The Attempt at a Solution


First I tried 2 junction equations and 3 loops without V. Then I eliminated to the last 2 equations with 2 unknown, but I got 2 same equations.
Now I try with the equations above and still got 2 same equations.
I'm thinking maybe it's not write to say that I1 = I3 + I4 => I'1 = I'3 + I'4.
I need some suggestions about what loop should I use.
 
Last edited:
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I have that problem too! we had a group of hella people from 2 physics 421 classes working on that! we didn't get an answer, any new luck?
 
Come Back Online! I am with a study partner trying to figure this out! we can ConVerSate! Share Ideas! ! ! !
 
ε=Leq[1/[(1/di1)+(1/di2)]]
 
Sorry I don't have any idea yet. Are u from Shiwen class also?
 
Last edited:
Yeah, this question blows! we've worked it more than a dozen ways with more than a dozen other people! but the rest of the problems were easy
 

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