From: fizzbintuesday@that-google-mail-domain.com   
      
   Jeroen Belleman wrote:   
   > On 2021-08-26 04:25, Tom Del Rosso wrote:   
   >> Jeroen Belleman wrote:   
   >>> Tom Del Rosso wrote:   
   >>>> AIUI you use iron cores for low frequency and ferrite for high   
   >>>> frequency because ferrite doesn't get magnetized, so why couldn't   
   >>>> aluminum do the same?   
   >>>   
   >>> You *want* a transformer core to be easily magnetized! You don't   
   >>> want it to *stay* magnetized when the current goes to zero.   
   >>   
   >> Of course that's what I meant. It has to conduct a magnetic field   
   >> but it must not fight the induced field when it reverses.   
   >>   
   >> I asked about the behavior of ferrite vs aluminum.   
   >>   
   >>   
   >   
   > The short answer is that aluminium is worse than nothing as a   
   > transformer core. It *will* fight changing fields.   
      
   That implies that it will "stay magnetized" as you put it, so the answer   
   is too short but thanks for trying.   
      
      
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