Parallel/Series Combination Circuits

AI Thread Summary
In the discussion about the circuit configuration, participants confirm that resistor R3 is in parallel with resistor R2, as indicated by multiple current paths between them. The equivalent resistance (Req) can be calculated using the sum of the reciprocals of R2 and R3, followed by adding the resistance of R1 in series. Clarification was sought regarding the circuit's structure, but it was affirmed that the initial assumptions were accurate. Overall, the conversation emphasizes understanding the relationship between resistors in parallel and series configurations. This reinforces the importance of visualizing current flow to determine circuit arrangements accurately.
N2L48
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I understand the concepts of whether a resistor is in parallel or in series with each other. But I thought of a weird case that i can't seem to find examples for.

http://imgur.com/b2YMOnAIn this case, would R3 be in parallel or in series to R2? Or could this just be an impossible case?

Thanks in advance
 
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N2L48 said:
I understand the concepts of whether a resistor is in parallel or in series with each other. But I thought of a weird case that i can't seem to find examples for.

Can you do this circuit?

attachment.php?attachmentid=58292&stc=1&d=1367133626.png


How does it differ from yours?
 

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willem2 said:
Can you do this circuit?

attachment.php?attachmentid=58292&stc=1&d=1367133626.png


How does it differ from yours?

Thanks for the reply.

For that circuit, R3 and R2 would be parallel, so it would be the sum of the reciprocals of R2 and R3. Afterwards, R3+2 will be in series to R1 (Sum of both will give the Req).

My initial assumption was that the circuit I posted was the same as the one you posted, that R3 is parallel to R2, since there's more than 1 flow from R3 to R2. However I read something that confused me, and I just wanted to verify if my assumption was correct.
 
N2L48 said:
Thanks for the reply.

For that circuit, R3 and R2 would be parallel, so it would be the sum of the reciprocals of R2 and R3. Afterwards, R3+2 will be in series to R1 (Sum of both will give the Req).

My initial assumption was that the circuit I posted was the same as the one you posted, that R3 is parallel to R2, since there's more than 1 flow from R3 to R2. However I read something that confused me, and I just wanted to verify if my assumption was correct.

Yes, you're assumption was correct, and the 2 circuits are identical.
 
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