Magnetic flux distribution in transformers

R. E. Hellmund: The points brought out in the paper simply emphasize something which is overlooked too much in teaching. In electrical engineering, we frequently cannot see the real thing and are forced to adopt conventions in order to make things clear with our limited mental facilities. Now, as long as we have to adopt conventions, we are perfectly at liberty to adopt the one or the other, but the thing that is neglected is to make it perfectly clear that we are dealing with conventions instead of facts. It is all right to teach the separate fluxes to the students, but we must keep in mind that in fluxes may be different as shown in the paper.