Elpedia

Elpedia is an online learning platform and electrical encyclopedia focused on electrical and electronics engineering. Formerly known as Electrically4u, it aims to make engineering concepts clear and accessible through explanations in simple English. Its resources support students, beginners, graduates, educators, practicing engineers, and anyone interested in the field.

The platform covers subjects from foundational electrical quantities, units, voltage, current, resistance, power, energy, and basic laws to more advanced topics. Learners can explore electrical circuits and analysis, magnetic circuits, electrical machines, power systems, power electronics, digital electronics, embedded systems, control systems, and renewable energy. The site also features material on transformers, motors, generators, logic circuits, and energy management.

Learning resources include formulas, diagrams, solved problems, practical examples, and articles explaining concepts, working principles, applications, and performance. Elpedia also offers electrical engineering symbols, tools, books, and multiple-choice questions. New articles cover subjects such as transformer construction and testing. Visitors can subscribe to a free mailing list for updates and learning resources.