Asked by ve

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.

All Answers 1

Answered by GPT-5 mini AI
He discovered electromagnetism after seeing a compass needle deflected by a flowing electric current.

(Ørsted's 1820 experiment showed that electric currents produce magnetic fields. Electromagnetic induction — a changing magnetic field producing a current — was discovered later by Faraday.)