What is the most common and effective way to connect conductors in residential wiring?

The most common and effective way to connect conductors in residential wiring is through the use of wire nuts or screw terminals. Wire nuts, which are plastic connectors that twist onto the ends of wires, create a secure connection that insulates the conductors and helps prevent electrical arcing or short circuits. This method is widely used because it is straightforward, quick to apply, and provides a reliable mechanical and electrical connection.

Screw terminals, found on devices like switches and outlets, allow conductors to be secured tightly by wrapping a wire around a screw. This method also ensures a robust connection and is favored in scenarios where conductors need to be connected to devices directly.

The other choices, while valid forms of connection in specific contexts, are not as universally effective in residential wiring. Crimp connectors involve a tool to compress a metal sleeve around the wire, which can provide a solid connection but requires more effort and skill to execute properly. Twist-on connectors may be seen as a shorthand for wire nuts, but they lack the same level of insulation and security. Splice boxes are used for housing multiple connections but are not a direct method of connecting wires like wire nuts or screw terminals. Thus, using wire nuts or screw terminals is often preferred in residential installations for their