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Holy current, how do you find the the current at each ammeter?

  1. Mar 24, 2008 #1
    Holy current, how do you find the the current at each ammeter?!?!

    1. The problem statement, all variables and given/known data
    Find the current at each ammeter.

    [​IMG]
    My solution
    Someone told me to use
    [tex]\sum[/tex]E-[tex]\sum[/tex]IR=0
    to solve the system but they weren't sure.

    But I cannot find anything about this on the internet and I'm freaking out!
     
    Last edited: Mar 24, 2008
  2. jcsd
  3. Mar 24, 2008 #2
    Use Kirchhoff's junction and loop laws.
    The sum of the voltage differences around any closed loop equals to 0.
    The current entering a junction equals the current exiting a junction.
     
  4. Mar 24, 2008 #3
    The person that told you to use:

    [tex]\sum{E}-\sum{IR} = 0[/tex] is partially correct. You need to use that (it's called Kirchhoff's Loop Rule).

    You also need to use Kirchhoff's junction rule [tex]\sum{i_{in}} = \sum{i_{out}}[/tex].
     
  5. Mar 24, 2008 #4
    thanks mates this helped a lot :approve:
     
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