Magnetic lines of force are no different than the force of a post holding a roof up. If it doesn't move it doesn't perform work or have power. PM motors #1 don't waste electricity making magnetic lines of force by pushing electricity through windings. #2 PM motors have a shorter current path which lowers the internal resistance. Less resistance = more current which equals more power if the voltage stays the same. Reading posts of this nature makes me wonder how students pass tests and exams in school on the most basic questions in physics? And, what are they teaching in school?
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Today's Featured Article - What Oil Should I Use? - by Francis Robinson. I keep seein this question pop up over and over again in discussion groups all over the web. As with many things there are often several right answers and a few wrong ones. Some purist I'm sure will disagree to no end with what I will tell you but most of us out here in the real world don't really care do we ? Some of them only bring their noses down out of the air long enough to look down them anyway. If you are like me you are only doing this old tractor stuff because you enjoy it. You
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