Which type of wire carries the most current?

The wire gauge system is a standardized way of quantifying the diameter of electrical wires, particularly used in the United States. A lower gauge number indicates a larger diameter of wire, which can carry more current safely.

In this context, 12 AWG (American Wire Gauge) is the wire that can safely carry the most current among the options provided. It has a larger diameter compared to the other gauges listed, allowing for a lower resistance and reducing the heat generated as current passes through it. This is critical for preventing overheating and ensuring electrical safety.

Knowing the relationship between wire gauge and current capacity is essential in applications like electrical wiring, where insufficient wire thickness can lead to overheating and pose potential hazards. Thus, in practical applications where high current demand is expected, selecting a wire with a lower gauge number, like 12 AWG, is a sound choice for both performance and safety.