While the labyrinth of wires that runs through the inner recesses of a home may seem to most people to be a tangled mess, they are—in order to function safely or at all—a precisely organized system.
A home’s electrical system is made up of a number of circuits. A “circuit,” by definition, is a circular journey that begins and ends at the same place, and this is essentially how electricity works. Current begins at a power source, powers the appliance or device along the circuit, and then returns to the power source. Any interruption in this path will render the circuit dead.
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