Recent content by Elementrist

I know it moves toward the point with the most flux intensity. (Or field intensity, which ever the right terminology is). The problem is the force that forces that movement, is not known to me. There are formulas that measure that force for a moving charge (q) but not for a solid stationary iron...

How can I calculate the force from magnetic field of a solenoid, grabbing a small iron ball? I want to use the good old simple F=ma formula in order to calculate the ball's acceleration. But can't find a formula to somehow convert the known field quality (in unit Tesla) to Force (in unit...