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Current through a resistor. Please Help

  1. Mar 14, 2009 #1
    Okay, I've been trying to study for my physics final and i've been stuck on this one for a few hours now...it's driving me crazy. There must be a flaw in my understanding of Kirchhoff's Laws.
    A link to the circuit can be found here -> http://img410.imageshack.us/img410/7798/resist.jpg [Broken]

    1. The problem statement, all variables and given/known data

    The battery voltage is 6 V.
    C1 = 1.8000000000000002 * 10^-8 F C2 = 1.5000000000000002 * 10^-8 F
    C3 = 1.1000000000000001 * 10^-8 F
    R1 = 270000.0 ohms R2 = 560000.0 ohms R3 = 110000.0 ohms
    R4 = 120000.0 ohms R5 = 390000.0 ohms R6 = 180000.0 ohms
    R7 = 680000.0 ohms
    What is the current through R1?


    2. The attempt at a solution

    R12 = 830000 ohms
    R123 =97127 ohms
    R67 = 860000 ohms
    R567 =268320 ohms
    Req= 485400 ohms
    Total current = 1.23 x 10-5
     
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Mar 14, 2009 #2

    tiny-tim

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    Welcome to PF!

    Hi uselessprog! Welcome to PF! :wink:
    485400 Ω looks right :smile:

    but how did you get 1.23 x 10-5?
     
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