This video explains the function of diodes and how they are used to control the flow of electrical current in electronic ...

Most circuits that require current loss detection use expensive isolation amplifiers. This circuit solves that problem with a simple and low-cost method to detect current loss of 4-20 mA. To view the ...

Key learning points Electrical charges What are free electrons? Cell polarity Conventional current direction Electrons orbit the nucleus. An atom has a neutral charge, because it contains the same ...

This circuit was designed to meet a medical application’s requirement to drive a laser diode with reasonable precision and a minimum of components and footprint (the device is now in clinical trials).

Physicists have successfully generated an electrical current from the atomic motion of graphene, discovering a new source of clean, limitless power. A team of University of Arkansas physicists has ...

Do you want to build an electric motor? You could probably find just about everything you need for a simple one around your house. Let me show you how to build it and why it works. Start With Magnet ...

Using simple components such as oil, salt water, lipids and proteins, plus routine genetic engineering techniques, it is possible to create simple nanofluidic ...

Use this fun, interactive activity to talk about how conductive materials allow electricity to flow freely, while insulating materials make it slow down or stop. This experiment was developed by ...