an idea

Posted by buickanddeere on May 20, 2010 at 21:08:22 from (216.183.146.235):

In Reply to: Re: here is an idea posted by teddy52food on May 20, 2010 at 14:16:35:

High density rare earth and ceramic PM's were at one time unavailable or exceedingly expensive.
Motor manufactures had to do the next best thing and use electricity to make non magnetic materials into magnets. Have you ever come across magnetic copper wire that wasn't energized?
Your explanation of PM motors is as logical as saying." It rains a lot in Britan because so many people have forced precipitation to appear by purchasing umbrellas which drain moisture from clouds".
Also if you knew anything about electric motors. Some components have to swap polarity. Can't do that with a PM.
Have to use electricity and reverse the current direction via AC current or using a commutator.
How do you try to explain energy, motors etc. When you lack the fundamental knowledge yourself?

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