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Another Parallel/Series Circuits Question

  1. Jan 25, 2013 #1

    2. Rtot=R1+R2+R3....+Rn.
    2a. 1/Rtot=1/R1 + 1/R2 + 1/R3....+1/Rn.

    3. Not sure if I'm starting in the right place. I think R1 and R4 are in parallel combining them to take R4s position. Then R3 and R2 are in parallel.
  2. jcsd
  3. Jan 26, 2013 #2


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    Redraw the circuit with nodes A anc C on the left.

    Some hints..

    R5 connects A to C
    R4 is indeed parallel with R1 so replace R4 with R4//R1

    No. R4//R1 is in series with R2 and they are both in parallel with R3

    R6 and R7 are in parallel.
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