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प्रश्न
Which list contains only examples of ferromagnetic substances?
विकल्प
Aluminium, platinum, oxygen, chromium
Bismuth, copper, silver, gold
Iron, cobalt, nickel, platinum
Iron, cobalt, nickel, gadolinium
MCQ
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उत्तर
Iron, cobalt, nickel, and gadolinium are ferromagnetic examples. Ferromagnetic substances are strongly attracted to a magnetic field.
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