The

In terms of classical mechanics, one

In terms of electromagnetism, one

See Also

**watt**(pronounced wot; symbol: W) is a derived unit of power in the International System of Units (SI), named after the Scottish engineer James Watt (1736 - 1819). The unit, defined as one joule per second, measures the rate of energy conversion. (wikipedia)In terms of classical mechanics, one

**watt**is the rate at which work is done when an object's velocity is held constant at one meter per second against constant opposing force of one newton.In terms of electromagnetism, one

**watt**is the rate at which work is done when one ampere (A) of current flows through an electrical potential difference of one volt (V).SI multiples for watt (W) | |||

Value | Symbol | Name | Multiples |

10^{24} W | YW | yottawatt | 1,000,000,000,000,000,000,000,000 |

10^{21} W | ZW | zettawatt | 1,000,000,000,000,000,000,000 |

10^{18} W | EW | exawatt | 1,000,000,000,000,000,000 |

10^{15} W | PW | petawatt | 1,000,000,000,000,000 |

10^{12} W | TW | terawatt | 1,000,000,000,000 |

10^{9} W | GW | gigawatt | 1,000,000,000 |

10^{6} W | MW | megawatt | 1,000,000 |

10^{3} W | kW | kilowatt | 1,000 |

10^{2} W | hW | hectowatt | 100 |

10^{1} W | daW | decawatt | 10 |

10^{0} W | W | watt | 1 |

10^{-1} W | dW | deciwatt | 1/10 |

10^{-2} W | cW | centiwatt | 1/100 |

10^{-3} W | mW | milliwatt | 1/1,000 |

10^{-6} W | µW | microwatt | 1/1,000,000 |

10^{-9} W | nW | nanowatt | 1/1,000,000,000 |

10^{-12} W | pW | picowatt | 1/1,000,000,000,000 |

10^{-15} W | fW | femtowatt | 1/1,000,000,000,000,000 |

10^{-18} W | aW | attowatt | 1/1,000,000,000,000,000,000 |

10^{-21} W | zW | zeptowatt | 1/1,000,000,000,000,000,000,000 |

10^{-24} W | yW | yoctowatt | 1/1,000,000,000,000,000,000,000,000 |

**Ohm's Law**

See Also

**Electromotive Force****Ohms Law****Power****Resistance****Volt**