If you’re looking to learn all about electrical and electronics engineering – you’ve come to the right place.
Electrical4U is dedicated to the teaching and sharing of all things related to electrical and electronics engineering.
Learn all about electricity, basic electrical engineering, power electronics, electrical and electronic symbols, alternators, diodes, DC motors, induction motors, transformers, control systems – and more!
We have electrical engineering apps and tools which can be useful for study and problem solving – including an ohms law calculator, voltage divider calculator, parallel resistor calculator, resistor color code calculator, a single and three phase transformer calculator.
Multiple Choice Questions on Electrical Engineering
Need help preparing for your exams? We have over 4500 electrical and electronics engineering multiple choice questions
(MCQs) and answers – with hints for each question. MCQs in all electrical engineering subjects including analog and digital communications, control systems, power electronics, electric circuits, electric machines – and much more.
We discuss various types of electric motors including DC Motors, Induction Motors, Synchronous Motors, and other special types of motors. We explain the working principles, characteristics, uses and testing of electric motors. This category is a collection of knowledge about all things related to electric motors.
Electrical and Electronics Measurements
We discuss various types of electrical and electronic measurements. An explanation of different bridge circuits, sensors, cathode ray oscilloscopes, digital meters, potentiometers, transducers, and more. We explain working principles of various measuring instruments and measuring systems.
We have discussed various types of electrical and electronic measurements. We have covered different bridge circuits, sensors, cathode ray oscilloscope, digital meters, potentiometers and transducer etc. We have explained working principles, characteristics, uses and many more of various electronic devices.
Digital Electronic deals with digital or discrete signals. We cover binary number systems, binary arithmetic, boolean algebra, De Morgan theorems, K-map, logic gates, and binary to other number system conversion. We have also explain the basic electronic circuits of various logic gates.
Electrical Power Generation
Learn about all types of electrical power generation systems including thermal, hydro, nuclear power generation, solar panels, wind energy electric generation, cogeneration and more. We explain the working principles and characteristics of different components of power plants, like boilers, turbines, economisers, solar panel, and wind turbines.
Learn about all three types of electrical switchgear systems – low voltage switchgear, medium voltage switchgear and high voltage switchgear – and the individual components of an electrical switchgear system. We explain the mechanisms, testing, commissioning, and maintenance of different parts of switchgear – including like CBs, CTs, CVTs, PT, isolators, and more.
Electrical Power Transmission Systems
Articles related to electrical power transmission systems. Learn about different transmission parameters, different materials used to construct a transmission line, HVDC systems, and different theoretical approaches to power transmission. We discuss the design aspects of transmission towers and their foundations.
The electrical generator is the most basic as well as a most expensive component of a power system. There are mainly two types of generators AC and DC Generator. One of the most common forms of AC Generator is an alternator. We have provided various detailed articles on generators in this generator section of the website – helping you to understand the basic concepts of generators.
We discuss various all things related to transformer – from fundamental theory to the modern advancement of transforms. Learn about all different types of transformers – two winding transformers, autotransformers, power and distribution transformers, single phase and three phase transformers, single unit and multi-unit three-phase transformer – and more. We also explain the different transformer accessories.