What is the typical voltage used in many home electrical systems?

The typical voltage used in many home electrical systems is 120 volts AC. This voltage level is standard in residential areas across North America and serves most household appliances and electrical devices effectively. The choice of 120 volts allows for a balance between power consumption and safety, enabling devices to operate efficiently while minimizing the risk of electric shock.

In homes, 120 volts is primarily supplied for common residential appliances, lighting, and electronic devices. Higher voltages, like 240 volts, are generally reserved for larger appliances such as dryers and ovens, which require more power to operate. Other voltages cited in the incorrect options, such as 12 volts and 48 volts, are typically used for specific applications like low-voltage lighting or automotive electrical systems, and are not suitable for standard household power distribution. Therefore, 120 volts AC is the correct and typical voltage for standard home electrical systems.