text: what would happen to a transformer with ferrite material inside an mri machine? also, where is the point of strongest magnetic flux density if say, it is a 3t mri machine? in the center of the bore? or is it uniform throughout? any ferromagnetic material would be attracted to a magnet. maybe if your ferrite is big enough it may cause the magnet to quench (but i doubt it). the trick with mri is to have a field gradient so that only a small volume of the "specimen" will be at resonance so the maximum flux points will vary as the scan proceeds.