Final answer:
Single-phase motors usually have horsepower ratings from fractional up to 5 hp, suitable for applications ranging from small household items to more demanding equipment.
Step-by-step explanation:
Most single-phase motors typically fall into the fractional to 5 horsepower (hp) range. These types of motors are commonly found in household appliances, power tools, and HVAC systems. The horsepower of a motor indicates its power output, with fractional horsepower motors being less than one hp, suitable for low-power applications, while motors approaching the 5 hp threshold are used in more demanding situations requiring a higher output.