What can an increase in wire gauge indicate?

• A. Higher resistance.
• B. Lower resistance and more current capacity.
• C. Increased voltage loss.
• D. Less current capacity.

Answer: (B)

An increase in wire gauge indicates lower resistance and greater current capacity. In electrical wiring, a larger gauge (represented by a smaller numerical value) means that the wire is thicker. Thicker wires have a larger cross-sectional area, which allows more electrons to flow through with less opposition. This results in lower resistance.

Additionally, with lower resistance, the wire can safely carry a higher amount of current without overheating. This is critical in electrical systems where a reliable and efficient current flow is necessary for proper functioning. The lowered resistance also means reduced voltage drop across the wire, enabling more efficient transmission of electrical power. Thus, selecting a wire with an appropriate gauge is essential for reducing energy losses and ensuring safety in electrical applications.