If a system uses 22/4 stranded wire for powering devices, how many conductors are used for power versus circuit paths?

• A. All four for power
• B. Two for power and two for circuit
• C. Three for power and one for data
• D. Two for data and two for power

Answer: (B)

With 22/4 stranded wire, there are four individual conductors in the cable. When powering devices, you typically use two conductors to carry the power (positive and return). The remaining two conductors are then used for the circuit path or signaling, separate from the power path. This setup—two for power and two for the circuit—lets you supply power while also conveying data or control signals without interference.