Answers

2016-04-22T15:51:27+05:30
You have to know the conversion factor (745.7 watt = 1 hp) 

hp has no dimensions other than "hp" (lower case). 

PS, there are many different types of horsepower, 745.7 watt is only one. For example, mechanical horsepower, also known as imperial horsepower, is 550 foot-pounds per second.
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