Physics, 08.04.2021 02:10, Nathaliasmiles

Which describes Hans Oersted’s work with electricity and magnetism? He discovered electromagnetic induction after seeing a compass needle deflected by a flowing electric current.
He discovered electromagnetism after seeing a compass needle deflected by a flowing electric current.
He discovered electromagnetic induction after seeing a changing magnetic field generate an electric current.
He discovered electromagnetism after seeing a changing magnetic field generate an electric current.

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