which group has obtained a material with magnetic properties
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Magnetism is a class of physical phenomena that are mediated by magnetic fields. Electric currents and the magnetic moments of elementary particles give rise to a magnetic field, which acts on other currents and magnetic moments. The most familiar effects occur in ferromagnetic materials, which are strongly attracted by magnetic fields and can be magnetized to become permanent magnets, producing magnetic fields themselves. Only a few substances are ferromagnetic; the most common ones are iron, nickel and cobalt and their alloys. The prefix ferro- refers to iron, because permanent magnetism was first observed in lodestone, a form of natural iron ore called magnetite, Fe3O4.
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group 2 has obtained the material with magnetic properties .
because as you can see it is already mentioned that mix & Crush iron filings and sulphur powder heat the mixture till Red hot, remove the flame and let the mixture cool then check for magnetism in the material obtained Group II has obtained the material
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