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If you’re looking to learn all about electronics and electrical 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.

To learn about basic Electrical Engineering, check out our articles on Voltage, Current, Transformers, Single Phase Transformers, Step Down Transformers, Step Up Transformers, Alternators, DC Motors, Induction Motors, Star Delta Starter, Lenz’s law, Faraday’s law, and DOL Starters. We also review the best electrical engineering books.

To learn about basic Electronics Engineering, check out our articles on Buchholz Relay, RTDs, Diodes, Thermistors, High Pass Filters, Active Low Pass Filters, Band pass filters, Oscillators, Gray Code, Half Wave Rectifiers, Piezoelectric Transducer, and Maxwell Bridges.

To learn more about Control Engineering, check out our articles on Control Systems, Programmable Logic Controllers (PLCs), SCADA Systems, Nyquist Plot, and Bode Plot.

We also explore closely related physics topics such as the Schrodinger Wave Equation, Biot Savart Law, and the Heisenberg Uncertainty Principle.

And if you’re not sure where to start when it comes to learning electrical engineering and increasing your electrical knowledge, join our (free) email list.

Electrical Engineering MCQs

Need help preparing for your exams? We have over 5000 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.

Electric Motor Articles

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 electrical knowledge about all things related to electric motors.

Electrical Measurement Articles

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.

Electronics Devices Articles

Learn about the many different types of electronic devices. We go over basic electronics, semiconductors, diodes, transistors, LEDS, Printed Circuit Boards, MOSFETS, and more.

Digital Electronics Articles

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 also explain the basic electronic circuits of various logic gates.

Electrical Power Generation Articles

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.

Switchgear Articles

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.

Power Transmission System Articles

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.

Electrical Generator Articles

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.

Electrical Transformer Articles

We discuss all things related to transformers – from fundamental theory to modern advancement. Learn about all different types of transformers – two winding transformers, autotransformers, power and distribution transformers, single phase and three phase transformers – and more.