Which statement describes a series connection?

• A. Two wires are fed simultaneously through one wire feeder connected to a single power source
• B. The wires are connected in series using two wire feeders and a single power source
• C. The current goes from power source to base metal, etc
• D. Two separate power sources feed the two wires independently

Answer: (B)

In a series connection, the current has one path to follow through every component, so the same current flows through each part and the voltages across them add up to the source voltage. When two wire feeders are connected in series to a single power source, the welding current goes through the first feeder, then through the second feeder, and finally to the work, forming one continuous current path. This single-path, same-current arrangement is what defines a series setup.

The other scenarios describe different setups: feeding two wires in parallel from one feeder would not force the same current through both in a single path; having two separate power sources feeding the wires independently creates separate paths with separate sources. The described option matches the idea of one current path through both feeders, powered by one source.