Which describes Hans Oersted’s work with electricity and magnetism?

Oersted found that an electric current deflects a nearby compass needle, showing a connection between electricity and magnetism called electromagnetism. Electromagnetic induction—the generation of an electric current by a changing magnetic field—was discovered later by Michael Faraday. Therefore, the correct choice is “He discovered electromagnetism after seeing a compass needle deflected by a flowing electric current.”

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