Ground neutral and hot wires explained. In this video we look at the difference and purpose of the ground wire, the hot wire and the neutral wire in a north american residential electrical system. We look at ground faults, GFCI,...

Learn to build a simple electric motor as well as how the motor works. We cover the rotor, shaft, commutator, stator and magnets to learn how an electric motor works.

How long will a battery power a circuit? Learn how to estimate battery life in this video.

This video shows how to measure DC current with a manual-ranging multimeter.

An introduction to Conventional Current and Direct current. Includes conventional current direction and dimensions. We even talk about the Bohr model of the atom. And, of course, an example problem where we figure out current and the...

An introduction to Resistance. We also define ohmic versus non-ohmic with graphs. We define the slope of the graph as resistance. There is also a discussion of a graph of Electric Potential Energy as a function of Position and we...

The first aspect of the innate immune system we will examine is the many barrier surfaces, such as the skin, as well as the linings of the respiratory tract and digestive tract. These cells have to constantly prevent infection from the...

In this video, the concept of electrical circuits and current flow is explained. The narrator discusses how wires in homes form circuits that supply electricity to various appliances and devices. The video also introduces the concept of...

Electricity makes our lives easier every day. We use electricity in our work and play. Because electricity is virtually unseen, it is often difficult to understand just where it comes from and how it works. By watching the video and...

Parallel Circuits Explained. In this video we take a look at how DC parallel circuits work and consider voltage, current, resistance, power consumption as well as some worked examples and some test questions with solutions.

How does a car alternator work? learn from the basics where we use the alternator and how alternators work.

From June 2002 to early October 2011, the Advanced Microwave Scanning Radiometer for the Earth Observing System (AMSR-E) on the Aqua satellite provided a wealth of data about the Earth's water cycle. Among the many variables...

In this lecture, we will explore LEDs and current limiting resistors and learn how to work with them.
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This clip is from the chapter "Electronic Fundamentals" of the series "The Complete Beginners Guide to Arduino - 2021".In...

How to calculate step down transformers, learn how in this easy video on step down transformer calculations

Learn how to perform basic step up transformer calculations with this video on basic transformer calculations

HTML5 Programming: Geolocation - Project on Geolocation
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This clip is from the chapter "HTML5 Programming" of the series "The Full Stack Web Development".In this section, we look into little more advanced HTML5. We will be...

This video discusses the relationships between electrical energy, voltage, current, and time. It explains the concept of electrical power and how it is measured in watts or joules per second. The video then shows how this equation can be...

Resisting means to withstand something and that’s what electrical resistors and resistance in an electrical circuit does. In this video we’re going to learn about electrical resistance and resistors. An electric current is the flow of...

A discussion of electrical current, and how to understand it.

Diodes Explained, in this tutorial we look at how diodes work, where diodes are used, why diodes are used, the different types. We look at diodes in half and full bridge rectifiers to convert AC to DC.

The video is a lecture presentation on electrical energy transfers. The presenter discusses three equations for power and how they can be combined to calculate the energy transfer by an electrical device in a given time. The symbols and...

Transformers change the potential difference of electricity. There are two main types of transformer that are used in the national grid. These are step up and step down transformers. Each of them consists of a two coils of wires around...

Voltage vs current, or sometimes it's current vs voltage; we are constantly trying to understand the differences between these two entities related to electricity. Then, there is sometimes one more entity: resistance. How do these three...

This video explains Ohm's law, a simple equation used to calculate various pieces of information in circuits. The video provides an example of how to use the equation to calculate current in a circuit.