|MadSci Network: Physics|
original post 1038405052.Ph maybe i am going about this all wrong? as far as i thought i knew, i could reverse the polarity of a permenant magnet by running a current through a coil wrapped around the said magnet. instead should i be using an electromagnet to achieve the reversal? my experiment: i attached a neodymium mag to the edge of a 10cm diameter bearing and set it up with some more (fixed in place) neodymiums attracting it. i found that when i let the bearing move freely (from holding it) that the attraction pulled the whole assembly around to the nearest point, but to my surprise, the bearing and single magnet moved visibly past the greatest point of attraction before reversing and coming to rest at said point. thus i thought that if i reversed the polarity of the fixed magnets after the mobile magnet had passed the nearest point the assembly would repel and the "problem" would be solved?? so thus my original question about reversing the poles. what would my best (simplest) way of going about achieving a continuous switching of a magnets poles be. and again "most importantly would the push force the magnets generate be only equal to the power consumed to attain the reverse?"
Re: How do i reverse the polarity of a neodymium magnet?
Try the links in the MadSci Library for more information on Physics.