Final answer:
Wires up to 10 gauge are solid, with higher gauge numbers indicating thinner wires as standardized by the American Wire Gauge (AWG) system.
Step-by-step explanation:
Wires up to 10 gauge are typically solid (single strand), while larger wires are multi-strand. In the context of household electrical wiring, gauges commonly range from 10-gauge to 14-gauge, where a 10-gauge wire has a diameter of 2.588 mm and is still considered solid, and a 14-gauge has a diameter of 1.628 mm. The American Wire Gauge (AWG) system standardizes the measurement of wire gauges in the United States, with higher gauge numbers indicating thinner wires.