The story of Ampere’s Law begins with a remarkable discovery in the early 19th century. In 1820, Danish physicist Hans Christian Ørsted found that an electric current creates a magnetic field around it. This was observed when a compass needle placed near a wire carrying an electric current turned to align perpendicularly to the wire. … Read more
The story of the Biot-Savart Law begins in the early 19th century with two French physicists, Jean-Baptiste Biot, and Félix Savart. These scientists were intrigued by the relationship between electricity and magnetism, a topic that was not well understood at the time. In 1820, during a series of experiments, Biot and Savart discovered that electric … Read more
The earliest known magnets were naturally occurring minerals called lodestones, which are pieces of the mineral magnetite that have been magnetized. These were discovered by ancient civilizations such as the Greeks, who named them after the region of Magnesia where they were found. The first major application of magnetism was the magnetic compass, which the … Read more