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November 21, 2014

November 21, 2014

Posted by **apoorva** on Tuesday, March 11, 2008 at 2:22am.

I don't know what to do. In class, we learned about amps, volts,and resistance, but never horsepower.

the equations we used were like P=v^2/R or V=iR and stuff like that.

please help

- physics -
**drwls**, Tuesday, March 11, 2008 at 2:45amThe produced power is useful power, and 1.2 hp is 895 W. (1 HP = 746 watts). Therefore the electrical input power is 895/0.85 = 1053 W.

Since electrical power P = I*V, the current is P/V = 1053/9.6 = 109.7 A

The waste heat is 15% of the input power, or 158 W

- physics -
**Hasnain**, Tuesday, November 22, 2011 at 8:46amhow to use formula in unit

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