 Jacques-Arsène d'Arsonval

Jacques-Arsène d'Arsonval (1851–1940) was a French physicist and inventor known for his contributions to the field of electromagnetism and the development of instruments for measuring electrical parameters. He is notably recognized for his work on alternating current (AC) electricity and for inventing the d'Arsonval galvanometer, a sensitive device used for measuring small electric currents. His innovations laid the groundwork for various applications in physics and engineering.