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The most physics I ever took was Physics C in high school (physics with calculus). I have now forgotten almost all of it, with remnants of memory here and there (Biot-Savart law comes to mind). Anyway, this not a homework question. I am trying to trap some metal particles at a particular location in space (some arbitrary location). The particles are blowing all over the place in a cube, and I need to concentrate them at a particular location. Now, these particles have a net force in a magnetic field. Concept wise, I thought I could just stick two magnets (with the north poles facing each other) at opposite sides of the cube. In practice, the particles still whiz around and fail to collect in the middle. So, now I'm sending an SOS to the physicists-- how can I trap these metal particles in the middle (using an electromagnet if necessary)?
This is purely a conceptual question. There are no dimensions or whatever (the cube has an arbitrary side length). I can blow around as many particles as I want in the glass cube (using a small fan). I just want the stuff to collect in the middle. So, how can I position these external magnets? Oh, and the particles are iron.
Thanks :D
This is purely a conceptual question. There are no dimensions or whatever (the cube has an arbitrary side length). I can blow around as many particles as I want in the glass cube (using a small fan). I just want the stuff to collect in the middle. So, how can I position these external magnets? Oh, and the particles are iron.
Thanks :D
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