Asked by l.

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.

Explanation: In 1820 Ørsted observed that a current-carrying wire deflected a nearby compass needle, showing that electric currents produce magnetic fields (electromagnetism). Electromagnetic induction (changing magnetic fields producing currents) was discovered later by Faraday and Henry.