Electromagnetic Induction
The story of the AC Generator, also known as an alternator, is a fascinating chapter in the history of electricity. It begins with the foundational work of Michael Faraday, who in 1831 discovered electromagnetic induction—the principle that a changing magnetic field within a loop of wire induces an electric current in the wire. This discovery … Read more
The story of inductance begins in the early 19th century with the observation of electromagnetic phenomena. Ancient civilizations were aware of static electricity and magnetism, but it was not until this period that the connection between electricity and magnetism began to be understood. In 1831, Michael Faraday, a British scientist, conducted a series of experiments … Read more
The phenomenon of eddy currents has been around since the beginning of electromagnetism, but it wasn’t until the 19th century that it was observed and understood. The story begins with François Arago, who in 1824 noticed something peculiar. He observed that a rotating copper disk could cause a compass needle to move. This was the … Read more
Lenz’s Law is named after the German physicist Heinrich Friedrich Emil Lenz, who formulated it in 1834. Lenz was not the first to notice the phenomenon of electromagnetic induction, but he was the first to provide a clear and concise rule for determining the direction of induced currents in conductors. The early 19th century was … Read more
The early 19th century was an era of rapid progress in understanding electricity and magnetism. Before Faraday, scientists like Hans Christian Ørsted and André-Marie Ampère had already laid the groundwork by discovering that electric currents affect magnetic needles and that currents could attract or repel each other. Michael Faraday, born in 1791, was not formally … Read more