Theory of ferromagnetic phenomena which assumes each atom is a permanent magnet which can turn freely about its center under the influence of applied field and other magnets ___

Theory of ferromagnetic phenomena which assumes each atom is a permanent magnet which can turn freely about its center under the influence of applied field and other magnets.

A. Ewing’s theory of ferromagnetism
B. Oersted’s ferromagnetism theory
C. Maxwell’s magnetic theory
D. Ampere’s circuital law

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Answer: A

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