 
<translate> Muhimmin bangare na amsa wannan tambayar shi ne: Na farko, a shekara ta 1819, Hans Christian Ørsted ya gano cewa wutar lantarki tana haifar da filin maganadisu da ke kewaye da ita. Amsar ita ce Hans Christian Ørsted. <eng> The important part for answering this question is: First, in 1819, Hans Christian Ørsted discovered that an electric current generates a magnetic field encircling it. The answer is Hans Christian Ørsted. 