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What personal data we collect and why we collect it Comments When visitors leave comments on the site we collect the data shown in the comments form, and also the visitor’s IP address and browser user agent string to help spam detection. An anonymized string created from your email address (also called a hash) may … Read more

Best Arduino Starter Kit – Our Top 8 Picks of 2019

The right Arduino starter kit can help make a project much easier, especially if it’s user-friendly and comes with all of the necessary modules and accessories. On the other hand, it’s easy to get bored quickly when your Arduino starter kit only comes with a few extras. Today, we’re going to review 8 of the … Read more

Disclaimer

Electrical4U is owned and operated by and may contain advertisements, sponsored content, paid insertions, affiliate links or other forms of monetization. Electrical4U abides by word of mouth marketing standards. We believe in honesty of relationship, opinion, and identity. Electrical4U is never directly compensated to provide opinion on products, services, websites, and various other topics. The … Read more

Best Portable Generator – Our Top Picks of 2019

A great portable generator is one that you can rely on to get you through emergencies. It needs to be reliable, durable, and long lasting. On the flipside, a poorly-made generator can let you down just when you need it most. Today, we’re going to review the Top 7 Portable Generators – so that you … Read more

About Electrical4U

If you’re looking to learn all about electrical and electronics engineering – you’ve come to the right place. Electrical4U is the ultimate electrical and electronic engineering study site. We are dedicated to the teaching and sharing of all things related to electrical and electronics engineering. We have over 1000 electrical and electronics articles. Learn all … Read more

Electrical and Electronics Engineering Basics & Principles

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 about transformers, electricity, basic electrical engineering, thermistors, electric fields, power electronics, electrical symbols, alternators, diodes, DC motors, induction motors, … Read more

Wave Particle Duality Principle

With the development of Photoelectric effect, Crompton’s effect and Bohr’s model of atom, the idea of light or in fact radiations in general, being composed of particles or discrete Quanta was gaining wide popularity. However, the very established Huygen’s Principle and the results of Young’s double slit experiments made it very clear that light was … Read more

Electrical Engineering Objective Questions MCQ

Need help preparing for your electrical exams? We have over 4500 electronics and electrical engineering multiple choice questions (MCQs) and answers – with hints for each question. Electrical4U’s MCQs are in a wide range of electrical engineering subjects including analog and digital communications, control systems, power electronics, electric circuits, electric machines – and much more. … Read more

Energy Quanta | Development of Quantum Physics

Energy quanta is one of the fundamentals of the much heard of Quantum Physics. To understand it better, we would first understand the need of this new physics. The already established and much famous Newtonian Physics or the Classical Physics did indeed answer a lot of questions bothering the mankind, but it had its own … Read more

Heisenberg Uncertainty Principle

Introduction to the Heisenberg Uncertainty Principle The uncertainty principle is one of the more interesting and consequential outcomes of the statistical nature of quantum mechanics. The most famous realisation of the uncertainty principle states that one cannot measure with absolute certainty the position and momentum of a quantum system. This is the most common realisation … Read more