What describes the two types of electrical service?

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The correct choice accurately describes the characteristics of single-phase and three-phase electrical services. Single-phase service typically consists of one hot leg and one neutral, providing a voltage of either 120V or 240V, with the two hot legs mentioned here relating to a split-phase single-phase service common in residential applications.

Three-phase service, on the other hand, is characterized by having three hot legs, which allows for more efficient power distribution and is often used in commercial or industrial settings. The three hot legs enable a more balanced load and can provide more power than a single-phase system.

This distinction is critical in understanding how electrical systems are designed for different applications, as single-phase systems are indeed more prevalent in residential settings, while three-phase systems are utilized where higher power loads are needed, such as in large commercial and industrial facilities.

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