When comparing a 10 AWG uncoated copper conductor to a 10 AWG coated copper conductor, which statement is NOT true?

When comparing a 10 AWG uncoated copper conductor to a coated copper conductor, it's important to understand the properties of the materials involved. The American Wire Gauge (AWG) system indicates that both conductors have the same diameter and cross-sectional area; therefore, the areas of the conductors are indeed the same.

Resistance in conductors is generally determined by the material, length, and cross-sectional area. Since both conductors are made of copper and are of the same gauge, their resistance would primarily be affected by any coating on the conductor. The uncoated copper conductor should exhibit lower resistance compared to the coated version because the coating can add an insulating layer, preventing the free flow of electrons, thus increasing resistance slightly.

So, if the statement claims that the uncoated conductor has the greater resistance value, it doesn't hold true. The uncoated conductor should have a smaller resistance value compared to the coated one due to the lack of insulating material, allowing for better conductivity. This understanding helps clarify why the statement about the uncoated conductor having a greater resistance value is incorrect.