Which of the following statements is true regarding conductor sizes?

An 8 AWG conductor does indeed have a greater resistance per foot than a 6 AWG conductor, which makes this statement true. Understanding resistance in relation to conductor size is essential in electrical work. The American Wire Gauge (AWG) system indicates that as the gauge number decreases, the diameter of the conductor increases. A larger diameter allows for more space for electric current to flow, leading to lower resistance.

Thus, a smaller gauge number (like 6 AWG) signifies less resistance compared to a larger gauge number (like 8 AWG). This relationship is critical for ensuring electrical systems function efficiently without excessive heat generation or voltage drop, which can occur if conductors with too high a resistance are used inappropriately.

Because of this fundamental property of conductors, the other statements do not hold. For example, a 6 AWG conductor is indeed larger than a 4 AWG conductor and would have less resistance, contradicting the idea that they have the same resistance. Furthermore, a 10 AWG conductor will have greater resistance than an 8 AWG conductor, rather than lower resistance. Lastly, stating that all conductors have the same resistance disregards the fundamental principles of electrical engineering, where size significantly affects resistance