steel : rails :: alnico: ?
a) aircraft
b) machinery
c) silverware
d) magnets
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d) magnets
alnico means a powerful permanent-magnet alloy containing iron, nickel, aluminum, and one or more of the elements cobalt, copper and titanium
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alnico means a powerful permanent-magnet alloy containing iron, nickel, aluminum, and one or more of the elements cobalt, copper and titanium
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Vidhikriti:
Magnets
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