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Cum Creez Un Magnet?

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Posted 01 April 2008 - 05:46 PM


Vreau sa fac si eu unul dar nu stiu cum, astept sa imi spuneti voi.
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Posted 21 June 2008 - 01:52 AM

mama mia..cred ac te referi la electromagnet..e vorba de o bobina care practic nu e altceva decat un miez feromagneic infasurat cu fire conductoare prin care trece curentul electric .

ca magnetul permanent e acela de la mama natura..desi..poti MAGNETIZA diferite materiale si sa obtii magneti nepermanenti ale caror proprietati dispar in timp ... hmm ..
la ce te refereai mai exact ? :D
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