A tutorial on electrical power and watts. A practical example of light bulb power measurement is shown as well as a demo how to calculate appropriate resistor sizes.… Read the rest
Capacitors Explained – The basics how capacitors work working principle
Capacitors Explained, in this tutorial we look at how capacitors work, where capacitors are used, why capacitors are used, the different types. We look at capacitors in Power factor and full-bridge rectifiers to convert AC to DC.… Read the rest
Explaining how the national grid works
In the UK there are over 4,474 miles of overhead electricity lines providing power to Britain’s homes. Using a model I demonstrate how the National grid works.… Read the rest
Basic Electricity – Resistance and Ohm’s law
A tutorial on the basics of electrical resistance, resistors, and Ohm’s law which describes the relationship between voltage, current and resistance. I also show you how to build a simple resistor + LED circuit.… Read the rest
Liquid Metal Batteries. Are they an economic possibility?
Liquid metal batteries are being hailed by some as the most transformative and revolutionary energy storage technology since John B. Goodenough came up with lithium ion batteries several decades ago. But the road from laboratory to full scale production has … Read the rest
Voltage Explained – What is Voltage? Basic electricity potential difference
What is voltage and what does it do? In this video we discuss how it work and its purpose to understand how electricity works. We’ll look at voltage for both alternating current and direct current starting off very simply and … Read the rest
What is an Amp? – Electricity Explained
When you have an electric current it’s useful to be able to measure that current. This is done in amps (often using a multimeter). This video explains what an amp (A) (short for ampere) is, which also involves the coulomb … Read the rest
What is electricity? – Electricity Explained
What is electricity? How does electricity work? What do electrons do? What is short circuiting? These are all questions answered in this video: A fundamental explainer on what electricity is and how it works.
In following videos we’ll look at … Read the rest
Introduction To Electric Charge
A simple and easy introduction to electricity. It covers electric charge, the discovery of electricity, the nature of electricity and some of the more technical stuff for the classroom for you students.… Read the rest
The quest for Nikola Tesla’s wireless power technology
Nikola Tesla’s biggest dream was a worldwide network of wireless power transmission. He built a lab and a massive prototype transmission tower…that never worked. But, a century later, engineers are chasing the same dreams of wireless power and making some … Read the rest