Which term best describes a mechanical and electrical connection between conductors?

The term that best describes a mechanical and electrical connection between conductors is "splice." A splice refers specifically to the joining of two separate pieces of wire or conductor, allowing electrical current to flow between them. This process can involve various methods such as twisting wires together, using solder, or employing connectors that secure the conductors in place.

In electrical work, splicing is essential for extending circuits or repairing cables without compromising the integrity of the electrical connection. Proper splicing ensures that there is a solid electrical path that can handle the expected current load without significant resistance or failure.

While other terms like bond and union may also relate to connections in different contexts, they do not specifically refer to the direct joining of conductors to create a continuous electrical path as splicing does. A bond typically refers to a connection made for grounding or ensuring electrical continuity, rather than a direct conductors' connection. Similarly, merge and union may imply combining or associating but are not specific to the electrical connections that ensure current flow between conductors.