Question

i want electromagnetism lesson could explain to me plz.......

Answer 1

Magnetism is closely related to electricity.These two characteristics combine to make  one of the fundamental forces in physics known as Electromagnetism.During the lecture demonstration in 1819,Danish Scientist Hans Oersted found that an electric current in a wire deflected a nearby compass needle. This momentous discovery, linking a magnetic field with an electric current for the first time,was the beginning of our understanding of the origin of magnet.