In that case, it has taken a shortcut to ground, thus creating an electrical short circuit. See All 5 Photos. A wiring diagram is helpful for tracing shorts.

According to Johnson, "Using Schematics To Troubleshoot HVAC/R Electrical Circuits, Part 1" came about because of feedback from the industry. "It’s shorter than our fundamentals training videos, and ...

A short circuit could even be cause by a single bulb for any number of other reasons. The lessons come down to these important points. First, an electric circuit must have a protective system. Second, ...

Different models, such as water flowing in a central heating system, can be used to understand electrical circuits. Find out more with BBC Bitesize. For students between the ages of 11 and 14.