This overview shows the basic concepts in electrical engineering pages. This means: the basic electronics page on which the basics of electricity and the concepts: voltage, current and resistance are explained. With Ohm's Law the relationships between these three quantities can be determined and explained. The other pages also deal with the basic electronics, but more with an application, such as the Wheatstone Bridge, which is used in the sensors to generate a signal voltage on the basis of a resistance change. The Wheatstone Bridge consists of series and parallel connected resistors, of which the concepts: replacement resistance, partial currents and voltage drop are described on the page: series, parallel and combined. The pages in this overview provide the reader / technician with the basic knowledge to get started with the electronics components and diagnosis.