Question

1 horsepower is equal to ______ watt.

Answer 1

Hint: First of all, we will understand what is the term called power. Horse power is the product of torque and angular velocity in radians per second. One horsepower is less that one thousand watts.

Complete step by step answer:
In the given problem, we are supplied with the following data:
The power of a device is given as \[1\] horsepower and we are asked to find the power in watts which is equivalent to \[1\] horse power.

To begin with, let us first understand what power actually is. Power is defined as the rate of work done by a body or it may be said as the transfer or conversion of energy per unit time. There are many units of power, among which the S.I unit of power is in watts. One watt is defined as the flow of energy amounting to one joule in one second. A more powerful device transfers more energy in each second.
Another unit of power is horsepower which is the common unit of power. It is also the rate at which some work can be done. According to the British Imperial System, one horsepower is equal to \[33000\] foots-pound of work done in one minute. It can be defined as the power required to lift a mass amounting to \[33000\] one foot per minute. Horse power is the unit of power which is used to measure the energy of an engine of a vehicle. Generally, horse power is measured by an instrument called dynamometer, which measures output torque of the engine.
One horsepower is equivalent to \[746\] watts. We can say that one horsepower is equivalent to \[746\] joules of work done in one second.

Note:Horsepower should not be confused with brake horsepower. Horse power is determined by trying to hook the engine up to a dynamometer, while brake horse power is determined without anything connected to the engine in a regulated setting.