1. The problem statement, all variables and given/known datahttp://www.sumoware.com/images/temp/xzlknterambqmokp.png [Broken] How to calculate the Magnetic Force of THE "Right Triangle" influenced by a Line when the magnetic field isn't constant B=u0*I/2piR? 2. Relevant equations B=u0*I/2piR F=iLB 3. The attempt at a solution I can use F=iLB to calculate the bottom line. But how to calculate the two other sides magnetic field. How to integral the magnetic field? Is it possible to use the middle point of the two sides to represent the whole line?