ABSTRACT
In 1831 Michael Faraday performed experiments to check whether current is produced in a closed wire loop placed near a magnet, in analogy to dc currents producing magnetic fields. His experiment showed that this could not be done, but Faraday realized that a time-varying current in the loop was obtained while the magnet was being moved toward it or away from it. The law he formulated is known as Faraday’s law of electromagnetic induction. It is perhaps the most important law of electromagnetism. Without it there would be no electricity from rotating generators, no telephone, no radio and television, no magnetic memories, to mention but a few applications.
