Most 120 Volt circuits are wired to deliver how many Amps of current?

In residential and commercial wiring, most standard 120-volt circuits are designed to deliver either 15 or 20 amps of current. This is based on the National Electrical Code (NEC) guidelines, which dictate that residential circuits, especially those for general use, are typically set up to ensure safety and efficiency while powering household appliances and devices.

A circuit rated for 15 amps is standard for lighting and small appliances, whereas circuits rated for 20 amps can accommodate larger loads, such as kitchen appliances or equipment that may draw more current. Understanding this distinction is crucial for proper circuit design and to prevent overheating and potential electrical hazards.

The other choices involve amperage levels that do not align with typical residential standards for 120-volt circuits; options featuring currents lower than 15 amps, such as 10 or 5 amps, are not standard for general circuits. Similarly, higher amperage options, such as 30 amps, exceed the typical maximum for circuits at this voltage level and would not be suitable for common residential applications. Thus, the answer that aligns with standard practices in electrical wiring is that most 120-volt circuits are wired to deliver either 15 or 20 amps.