Among the following, which wire size is the smallest?

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The smallest wire size among the given options is 14. In the context of wire sizes, smaller gauge numbers indicate larger wire diameters, whereas larger gauge numbers indicate smaller diameters. The American Wire Gauge (AWG) system is commonly used for measuring wire sizes, where each decrease of three gauges corresponds to a doubling of wire diameter, and thus a significant increase in current-carrying capacity.

In this case, wire size 14 has a smaller diameter than sizes 10, 8, and 0, making it the thinnest wire among the choices provided. Therefore, knowing the AWG system and its implications helps in identifying that the correct answer is indeed 14, as it represents a thinner, rather than thicker, wire size when compared to the others listed.

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