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How do you find the current if there are both series and parallel resistors? I can't figure it out and it's been driving me crazy.

- Thread starter Burrow
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How do you find the current if there are both series and parallel resistors? I can't figure it out and it's been driving me crazy.

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xanthym

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Try the following Web Site. It presents step-by-step instructions for reducing complicated series/parallel combo circuits. Moreover, once the "Equivalent Resistance" is determined, it shows how to work backwards to reconstruct the original circuit for evaluating currents and voltage drops across theBurrow said:

How do you find the current if there are both series and parallel resistors? I can't figure it out and it's been driving me crazy.

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DaveC426913

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Nylex has the answer. Reduce the parallels to series, then do the series.

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R1//(R2+R3) /*parallel first*/

R4 = R2 +R3 /*series reduction*/

R1//R3

But really in R1//(R2+R3) you have already put R2 and R3 in series so in this case it would be series then parallel.

Series then parallel or parallel then series it makes no difference. This method will not work for circuits with components which are neither in parallel or series.(often confused with components in series and parallel) On the other hand Thevenin's or Norton’s theorem will work for any circuit.

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I used Thevenin's theorum and it worked.

Thanks!

Thanks!

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