How many watts are equivalent to one horsepower?

One horsepower is defined as being equivalent to 746 watts. This conversion is based on the historical context in which horsepower was used to measure the power output of engines and motors, reflecting the power necessary to lift a specific weight over a certain distance in a set amount of time. In the metric system, particularly in electrical applications, watts provide a more precise measure of power. Thus, knowing that one horsepower equals 746 watts helps in understanding how mechanical power translates to electrical power in various contexts such as motors and generators.

Other wattage figures, like 500, 1000, and 850 watts, do not accurately represent the standardized conversion from horsepower to watts, which is why they do not constitute the correct answer. Understanding this conversion is essential for electrical engineers and technicians when assessing equipment performance and planning power systems in substations and other facilities.