Rule 1: Read first to learn how the circuit works, then redraw to troubleshoot. Rule 2: When tracing a circuit, always work from the load to the battery, or from negative to positive. Rule 1: Read ...

An electrical schematic diagram might look like a nonsensical drawing to the layman, but to the electrical engineer, it’s a high-level documentation that provides a ton of insight and instruction. The ...

Fran: Ahhh, I almost won that one as well! Now, our appliances and devices, they all work because of the electrical current that flows into them through a circuit. An electrical circuit is made of a ...

Q. What type of circuit breaker does the Code allow to be used for switching duty of lighting circuits? A. Circuit breakers used to switch 120V or 277V fluorescent lighting circuits must be listed and ...

Note: This article references the 2017 NEC because the Philadelphia area — the jurisdiction where this author teaches and works— is still operating under that version of the Code. Electrical switches ...

Electronic Products launches its back to basics electronic component series, in partnership with EDN, with an introduction to electromechanical switches. Don’t miss our discussion with Roger Bohannan, ...