Kirchoff's Rule on Circuits

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  • #1
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[SOLVED] Kirchoff's Rule on Circuits

Homework Statement


http://img296.imageshack.us/img296/7852/question1zu0.th.jpg [Broken]

What is the potential difference V_{ab} of point a relative to point b?

I found out earlier that the current in the top branch is 0.8 A

In the middle is 0.2 A

and at the bottom is 0.6A


Homework Equations



So V = IR - IR





The Attempt at a Solution



3*(0.8) - 4*(0.2) = 1.6V



But this isn't working for me...what am I doing wrong?
 
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Answers and Replies

  • #2
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the direction of 0.2 A current is in opposite direction...
 
  • #3
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oh thanks a lot!
 

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