1. The problem statement, all variables and given/known data If i have a system with one linear conductor and point, it's not problem to determine magnetic field at point, nut what happens if i have to determine the magnetic field at the straight line parallel to the linear conductor. 2. Relevant equations 3. The attempt at a solution For the linear conductor and point it's always B=(μ0I)(sinθ2-sinθ1)/4πd. But i dont know how to do it if i have a straight line and linear conductor.