Q: When I plugged my cell phone charger into a kitchen outlet, my phone didn’t start charging as it normally does—rather, it seemed that this one electrical outlet was not working. Is there something ...

Man looking at an open electrical panel in a home - Photoalto/eric Audras/Getty Images Imagine you're relaxing in your living room — the lights are on, the TV is streaming your current favorite show, ...

One of the most important electrical terms to know is AC. Ever since the Tesla-Westinghouse power plant at Niagara Falls came online in 1885, alternating current (AC) power has been the standard in ...

Electrical hazards can strike without warning—whether from damaged wiring, overloaded circuits, wet environments, or improper ...

Learn how to master every series and parallel circuit question and solve problems with 100% confidence. This guide breaks ...

John Carlsen has more than a decade of experience testing and reviewing home tech products, with a major focus on smart home security. He earned his BS in journalism from Utah Valley University. In ...

Operational amplifiers (commonly called op amps) are a ubiquitous building block for designing electronic circuits. Today, these devices are fabricated as small integrated circuits, but the concept ...

In last month's “Code Basics” article, starting on page 56 of the September issue, we spent most of our time discussing Class 1 circuits. Now, it's time to switch gears and focus on Class 2 and 3.

Article 210 provides the general requirements for branch circuits not over 1,000VAC or 1,500VDC. These include requirements for conductor sizing, overcurrent protection, identification, GFCI and AFCI ...