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need the details about ferro magnetic materials &use of that meterial in elecrical field
http://www.google.com/search?hl=en&rls=com.microsoft:en-gb:IE-ContextMenu&rlz=1I7RNWN_en&ei=JbRuSq7uEc-MjAfYxYmiBQ&sa=X&oi=spell&resnum=0&ct=result&cd=1&q=ferromagnetic+materials&spell=1
...wht ferro-magnetic. Will copper and aluminium (para & dia-magnetic materials) not be better?