In classical Lorentz force demonstration, let's say we have 2 permanent magnets generating a magnetic field perpendicular, out from the page and a wire carrying current to the left. Thus we would expect that the Lorentz Force will exert an upward force on the wire. According to Newton's 3rd law, there should be a reaction to this force. So do the magnets actually being pushed down? Or is there something else to compensate for the momentum? Thanks.