I'm really conflicted with this one, I found many sources that state that Newtons 3rd law does not hold in electrodynamics, reasonable sources with mathematical proof(example). And as a student who just finished Physics I and taking Physics II course, this is really confusing... but when I think about it, like a simple set-up of a solenoid and a wire placed in front of the solenoid, and allow current to flow in both conductors to create their magnetic fields, the magnitude of action/reaction pair are not equal(correct me if I'm wrong please!). The magnetic field of the solenoid is greater than the magnetic field created by the single wire, and the only forces that would represent the action/reaction pairs is the Lorentz force acting on both. And when I write down this example and work it out, they are not equal. Am I getting this right? Or is there something I'm missing?