What is the standard voltage of a typical United States household outlet?

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Multiple Choice

What is the standard voltage of a typical United States household outlet?

Explanation:
In the United States, normal household outlets are designed to provide about 120 volts between hot and neutral. The electrical system is split-phase, giving two hot legs, each 120V relative to neutral but opposite in phase. That means the typical receptacle delivers 120V for ordinary devices, while the two hot legs together can supply 240V for larger appliances (like dryers or ovens) when used on a two-hot circuit. Historically you might hear 110V, but 120V is the standard now. The 240V option refers to the higher-voltage outlets for heavy appliances, and 90V isn’t used in standard residential wiring. So the standard voltage for a typical household outlet is 120V.

In the United States, normal household outlets are designed to provide about 120 volts between hot and neutral. The electrical system is split-phase, giving two hot legs, each 120V relative to neutral but opposite in phase. That means the typical receptacle delivers 120V for ordinary devices, while the two hot legs together can supply 240V for larger appliances (like dryers or ovens) when used on a two-hot circuit. Historically you might hear 110V, but 120V is the standard now. The 240V option refers to the higher-voltage outlets for heavy appliances, and 90V isn’t used in standard residential wiring. So the standard voltage for a typical household outlet is 120V.

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