Magnetism (Iron filling question)

[DB]

Let's say you have two magnets of the same magnitude facing each other, North facing South. At a certain distance, with let's say and iron filling placed at a certain spot, is there a spot where the net magnetic force exerted on the filling will be zero?

 

[vincentchan]

If two magnets were not touching each other, put the iron in between, you can use symmetry argue that the iron has no preference going to either direction...

Placing the iron infinitely far away is another answer, and it is always right nomatter how you arrange the magnet(s)

 

[Antiphon]

There will be no net force so it won't move but there will be a torque
so it will twist. This is how a compass needle works.