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Finding current through in a specific part of a parallel circuit.

  1. May 10, 2012 #1
    1. The problem statement, all variables and given/known data

    In this circuit E1 = 5.98 volts and E2 = 4.45 volts. To the nearest hundredth of an amp what is I1?

    I have attatched a picture Physics problem.gif


    2. Relevant equations

    V=IR

    1/Req=1/R1+ 1/R2+ 1/R3

    3. The attempt at a solution

    Well I think I know that resistance for the whole system is 20/3.... But I really don't know how to set it all up because I have never used more than one battery in a problem before and it really doesn't look like this would make a correct circuit.
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. May 10, 2012 #2

    ehild

    User Avatar
    Homework Helper
    Gold Member

    Are you familiar with Kirchhoff's Laws? The resistors are not connected in parallel, as only one terminal of them is common with that of an other resistor, the other is connected to a battery.


    ehild
     
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