kirchoffs law

Discussion in 'Homework Help' started by sunny1982, Jan 15, 2013.

  1. sunny1982

    Thread Starter Member

    Dec 27, 2012
    41
    0
    Hi there this an assignment I am doing I just wanted to know if this task is correct, by using kirchoff law i have to detemine the current flowing through the load.
     
  2. Wendy

    Moderator

    Mar 24, 2008
    20,765
    2,536
    Given this is homework I have moved it to the appropriate forum.
     
  3. WBahn

    Moderator

    Mar 31, 2012
    17,737
    4,789
    This is the first problem from your other thread. You really shouldn't start more threads on the same problem - it causes all kinds of confusion. You have an answer of 0.444A (and you need to track your units throughout your work) but you don't indicate which direction that current is flowing through the load. Yes, in can be inferred by the directions of I1 and I2, but you shouldn't make the customer (or the grader) jump through those hoops. Clearly label the load current, with direction, on the diagram at or near the load itself.

    Use the technique shown in the other thread to see if you can verify this answer yourself. Start by finding the voltage on the top node (define the bottom node to be ground) and then find the currents in the other two branches that are consistent with this top node voltage. Do the three currents satisfy KCL?
     
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