Hi,
I'm trying to model a simple voice coil actuator in 2D and the magnetic feilds looks accurate. I also run current through a coil and try to calculate the resulting force on the coil. The results looks resonable when the coil is in the middle with 0N force in x direction when no current is run through the coil. However I strangley get a resulting force on my coil as soon as I offset it even without any current through it. The plotted results does not make any sense. What am I doing wrong?