Understanding the branch-circuit requirements in Art. 210 is critical to completing Code-compliant installations. Article 100 defines a “branch circuit” as the ...

Any time you are working with burglar alarm, access control, sound, nurse call, or intercom systems, as well as computer networks, lighting dimmer controls, and low-voltage industrial controls, you ...

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

This video explains what capacitors are and how they function as energy-storing components in electronic systems. Capacitors temporarily hold electrical energy and help manage voltage and signal flow ...

Digital multimeters (DMM), once called voltmeters, have been described as the tape measure for engineers in the new millennium. With electronics and electrical circuits included in almost every ...

All of the technical questions we receive from our readers, instrument function is one of the most oft asked. We’re asked why something doesn’t work or why it has gone completely haywire. But ...

Your circuit breakers are some of the most important but least understood parts of your home's electrical system, keeping you safe from electrical fires. Let's take a look at how they work.

We all carry supercomputers in our pockets and use dozens of electric gizmos every day but rarely stop to marvel at the magical act of flicking a switch. Use your ordinary conducting and extraordinary ...