Circuit (equivalent resistance)

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triforce
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Homework Statement


Find the equivalent resistance
Circuit schematic between terminals a and b with four resistors: 1) 2.0 Ω and 3) 3.0 Ω in series along the top, 2) 2.0 Ω hanging from the middle node, and 4) 4.0 Ω on the right branch, with the bottom wire connecting the lower ends.

Homework Equations


Req(series) = R1 + R2...
Req(parallel)=(1/R1+1/R2...)^-1

The Attempt at a Solution


I'm having problems understanding how to simplify this circuit.
There should be parallel and series "loops" to simplify but I'm having trouble seeing them.
 
Last edited:
triforce said:
I'm having problems understanding how to simplify this circuit.
There should be parallel and series "loops" to simplify but I'm having trouble seeing them.
Mark the junctions where potential is a . Consider a random voltage V , which is the potential in between the 2Ω and 3Ω resistors .

Now draw a fresh diagram , now marking a , b and V , and connecting resistors between the three appropriately . This should help in simplifying the circuit , making it easy to see the series and parallel connections .

Hope this helps .
 
Updated the image with the resistors numerated in red.

Do you have to consider potential?
 
Yes , the potential is what I mentioned in my previous post .
 
What i know is that potential stays the same across parallel sections and is summed up in series.

How does that help me if i can't distinguish which one is in parallel or in series?

Would you mind to explain a little further please, I'm kind of new to this.
 
Look at the bottom end of R2...imagine sliding it to the left and around the corner.