1. The problem statement, all variables and given/known data Two infinitely long current carrying wires run into the page as indicated. Consider a closed triangular path that runs from point 1 to point 2 to point 3 and back to point 1 as shown. Which of the following plots best shows B•dl as a function of position along the closed path? http://i.imgur.com/J7b5L.png 2. Relevant equations miu*I= B•dl 3. The attempt at a solution I used RHR.I am confused about when should it is positive and when is negative.