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Homework Help: Current through resistor

  1. Dec 17, 2003 #1
    what is the current through the 2 ohm resistor?
    what is the current through the 8 ohm resistor?

    8 V
    ......! |............
    . empty space .
    . empty space . I
    . empty space .
    ...2 ohm Res....
    . empty space .
    . empty space 8 ohm Res
    . empty space . I_2
    . empty space .
    ......! |............
    16 V

    ! = (-) side of battery
    | = (+) side of battery

    I_1 is on the 2 ohm branch (current going left to right)
    I current going down (clockwise)
    I_2 current going down (clockwise)

    Is this setup right with correct sign conventions?


    2 ohm res:
    I_1=4 A

    8 ohm res:
    I_2=1 A
  2. jcsd
  3. Dec 17, 2003 #2
    This is correct by Kirchoff's junction rule.

    Yes, this is correct. The potential difference in a circuit loop is equal to zero.
    However a more correct way to present your answer would be:



    It's good practice to keep units in your work.
  4. Dec 17, 2003 #3
    thanks redrogue
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