The physical size of the current-carrying wire is described by which standard?

The physical size of the current-carrying wire is described by which standard?

• A. IEC standard units
• B. AWG (American Wire Gauge)
• C. Metric wire size
• D. NBR gauge system

Answer: (B)

The American Wire Gauge sets the physical size of round conductors. It assigns a gauge number to a specific diameter and cross-sectional area, so you can determine how thick a wire is from its gauge. In this system, a higher gauge number means a thinner wire, and a lower number means a thicker one. While metric sizing uses cross-sectional area in mm^2, and other national standards exist, AWG is the standard that directly describes the wire’s physical size in a way most commonly referenced for current-carrying conductors.

The American Wire Gauge sets the physical size of round conductors. It assigns a gauge number to a specific diameter and cross-sectional area, so you can determine how thick a wire is from its gauge. In this system, a higher gauge number means a thinner wire, and a lower number means a thicker one. While metric sizing uses cross-sectional area in mm^2, and other national standards exist, AWG is the standard that directly describes the wire’s physical size in a way most commonly referenced for current-carrying conductors.