Electrical engineering emerged as an occupation in the late 19th Century, following the commercialisation of the electric telegraph, telephone and electrical power generation and distribution. These developments came as a result of early experiments with primitive batteries and static charges, which in turn led to Michael Faraday’s Law of Induction that stated that the voltage in a circuit is proportional to the rate of change in the magnetic field through the circuit. The Law of Induction informed the basic principles used for the electric motor, electric generators and transformers.
Early pioneers in electrical engineering include Thomas Edison (light bulb), George Westinghouse (alternating current). Nikola Tesla (induction motor), Guglielmo Marconi (radio) and Philo T. Farnsworth (television), all of whom created ideas, concepts and devices that became the foundations of the modern age.