Hi, for a particular project, I would like to create a 1~2 Tesla magnetic field in a stainless steel pipe along the z axis. I was wondering if my concept would work, or if anyone had better ideas. Here's my concept. Fig1. So I got a few pipes about 1 inch in diameter. I would like to have a 1T magnetic field through it along the vertical direction (z axis) Fig2. My idea was to get a 2 cylinder blocks of iron, drill some holes in it to allow the pipes to fit in as shown in the diagram. Fig3. Then attach some wire coils to the iron cylinders like as shown in the diagram. My question is, if I actually create a device like this, how would the magnetic field be..... ....directly above the cylinder (region A) ....in the pipe space area inside the cylinder (region B) ...in the pipe area between the two cylinders (region C) ....in the pipe space area inside the bottom cylinder (region D) ....directly below the bottom cylinder (region E) Thanks in advance all!!!!!