Friday

February 27, 2015

February 27, 2015

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

**Answer this Question**

**Related Questions**

Multiple Choice - Physics 2. Which of the following is equivalent to one ampere...

physics - An electric car accelerates for 7.2 s by drawing energy from its 430-V...

Physics - 1)A 2.0-V battery is connected in a circuit with an ammeter and an ...

Physics - A battery delivering a current of 55.0 A to a circuit has a terminal ...

DT - For my dt homework i need to find the definition of pillar drill, portable ...

Physics - What is the energy flow for the situation below: Rainfall being used ...

Physics - An electric drill operates at a potential difference of 120V and draws...

physics! - An electric car accelerates for 8.0s by drawing energy from its 320-V...

physics - Please help me to solve this problem about electic potential : An ...

physics - Please help me to solve this problem about electic potential : An ...