It’s a simple fact that, in this universe at least, energy is always conserved. For the typical electronic system, this means that the energy put into the system must eventually leave the system.

Many electricians, electrical engineers, and inspectors struggle with the National Electrical Code. Some find it impenetrable. People who are first confronted with a print edition of the NEC are often ...

Chapter 3 in the National Electrical Code (NEC) is 100 pages long in the 2020 loose-leaf edition. How can you possibly wrap your mind around that without extensive study? The answer is to see how the ...