1 / 5

Power

Power. The rate of conversion of electrical energy. Power. The watt (W) is a unit of power. Power is the rate at which energy moves or is used. One joule per second is equal to one watt. Power. One watt is a pretty small amount of power.

rex
Download Presentation

Power

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Power The rate of conversion of electrical energy

  2. Power • The watt (W) is a unit of power. • Power is the rate at which energy moves or is used. • One joule per second is equal to one watt.

  3. Power • One watt is a pretty small amount of power. • In everyday use, larger units are more convenient to use. • A kilowatt (kW) is equal to 1,000 watts.

  4. Power Potential Difference (volts) P = V I Power (watts) Current (amps)

  5. Power • Electric companies charge for the number of kilowatt-hours used during a set period of time, often a month. • One kilowatt-hour (kWh) means that a kilowatt of power has been used for one hour. • One kilowatt-hour is 3.6 x 106 joules.

More Related