How did Faraday’s experiments make large-scale electric power generation possible?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Michael Faraday’s experiments were foundational to the development of large-scale electric power generation by establishing the principles of electromagnetic induction.

In 1831, Faraday discovered that moving a magnet in and out of a coil of wire, or moving a conductor near a stationary magnet, induced an electric current in the wire. He determined that the magnitude of this current depended on the rate at which the conductor cut the magnetic "lines of force".12

Building on this, Faraday constructed the first dynamo—a copper disk rotated between the poles of a magnet—which demonstrated the continuous conversion of mechanical energy into electrical energy. This discovery serves as the basis for the modern power industry. While his early work provided the essential mechanism for generating electricity, the practical, large-scale implementation of these generators later relied on the development of complementary technologies, such as electric lighting and electric railways, which created the demand for widespread power distribution.134