Engineering Circuit diagram: find the equivalent resistance

[tensor0910]

Homework Statement

problem in title:

Homework Equations

1/Rtotal = 1/r1 + 1/r2...[/B]

The Attempt at a Solution

[/B]
I can get it down to 4 resistors...but the one's I have circled I don't know how they behave. I just need a little kick in the right direction lol. Thank you in advance!

 

[berkeman]

Homework Statement

problem in title:

Homework Equations

1/Rtotal = 1/r1 + 1/r2...[/B]

The Attempt at a Solution

[/B]
I can get it down to 4 resistors...but the one's I have circled I don't know how they behave. I just need a little kick in the right direction lol. Thank you in advance!

View attachment 220816

Can you show your work? It looks like those resistors fold up pretty well...

 

[cnh1995]

I can get it down to 4 resistors..

Please show your work.

If you are on the right track, two of the four resistances can be converted into one resistance and only 3 resistors remain in the circuit, two of which are your circled ones. You could then see how they behave.

 

[tensor0910]

here is my work so far. sorry for the delay

 

[gneill]

Okay, so what's the next step? Can you find any more resistances that are in parallel?

 

[jaus tail]

Resistance in parallel means they have 2 common points.

 

[tensor0910]

ok I got it now. Sorry guys not my strongest subject lol. Thanks for all the help!

 

[FactChecker]

Suppose your last diagram was rearranged into the diagram below. Then is it clear what the next step is? The two diagrams are equivalent.

EDIT: I was too slow. My drawing skills are not worth s*&t.

 

[tensor0910]

Suppose your last diagram was rearranged into the diagram below. Then is it clear what the next step is? The two diagrams are equivalent.
View attachment 221057

EDIT: I was too slow. My drawing skills are not worth s*&t.

see that makes sense to me. they're in parallel. But my book has this for example: ( Figure P2.8)
There's two different voltage sources but they're connected in parallel, right? How can that be?

 

[gneill]

see that makes sense to me. they're in parallel. But my book has this for example: ( Figure P2.8)
There's two different voltage sources but they're connected in parallel, right? How can that be?

I don't see any voltage sources connected in parallel. Both of the the sources are in series with current supplies.