Using your phone's internet browser
go to:  qna.rediff.com
Click and drag this link to
the Home icon in your browser.
Q.

What is Horse Power? Why is it related to speed of the motors?

Tags: power, horse power
Asked by sajan sajan, 21 Jul '10 03:49 pm
  Invite a friend  |  
  Save  |  
 Earn 10 points for answering
Answer this question  Earn 10 points for answering    
4000 characters remaining  
  
    
Keep me signed inNew User? Sign up

Answers (3)

 
1.

Horsepower (HP) is the name of several units of measurement of power. The most common definitions equal between 735.5 and 750 watts.
The development of the steam engine provided a reason to compare the output of horses with that of the engines that could replace them. In 1702, Thomas Savery wrote in The Miner's Friend: "So that an engine which will raise as much water as two horses, working together at one time in such a work, can do, and for which there must be constantly kept ten or twelve horses for doing the same. Then I say, such an engine may be made large enough to do the work required in employing eight, ten, fifteen, or twenty horses to be constantly maintained and kept for doing such a work" The idea was later used by James Watt to help market his improved steam engine. He had previously agreed to take royalties of one third of the savings in coal from the older Newcomen steam engines.[3] This royalty scheme did not work with customers who did not have existing steam engi ...more
Answered by saranathan Narasimhan, 21 Jul '10 03:45 pm

 
  
Report abuse
Useful
 (0)
Not Useful
 (0)
Your vote on this answer has already been received
2.

Earlier the fast travel was covered on horses with speed. When motor vehicles came into being their speed was compared with that of horses, the commonest means of fast travel hence the comparison !
Answered by nkpathak, 21 Jul '10 05:04 pm

 
  
Report abuse
Useful
 (0)
Not Useful
 (0)
Your vote on this answer has already been received
3.

Horse Power is unit of power or energy at rated rpm of prime mover. Conversely, to operate motor at particular rpm, unit of power required is rated by this relation.
Answered by Avtar Khalsa, 21 Jul '10 03:48 pm

 
  
Report abuse
Useful
 (0)
Not Useful
 (0)
Your vote on this answer has already been received

Ask a Question

Get answers from the community

600 characters remaining

Related Answer

Q.
A

War of the worlds..more

Answered by Sunil Kumar