Electrical and electronics engineering is the branch of engineering concerned with practical applications of electricity in all its forms. Electronics engineering is the branch of electrical engineering which deals with the uses of the electromagnetic spectrum and the application of such electronic devices as integrated circuits and transistors.

The research functions of electrical and electronics engineering include basic research in physics and other sciences, applied research, design of devices, equipment, and systems for manufacture, field-testing, the establishment of quality control standards, supervision of manufacture and production testing, and engineering management.

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.