Specifically: 1. If there are two (horseshoe) magnets that are facing each (unlike poles facing ea) other and an iron ring is placed in between them. Why are there no magnetic fields inside the iron ring? - As far as my understanding goes. I believe that theres no magnetic field inside the ring because the iron ring serves as something like a conductor whilst the air inside the ring serves as an insulator thus there are no magnetic fields inside the ring. Am I right? Lastly... 2. Are there regions between permanent magnets where the magnetic field lines intersect? If yes where? If no why? - There are no regions in the magnetic field where the magnetic field lines intersect. Simply because each magnetic field lines are distinctly unique with each other and do not intersect. If, however, they do intersect at one point, that would mean there are two values that can be acquired at that respective point and is completely impossible. (I believe theres something lacking in my answer, like, theres an absence of a proof.