A | B |

work = | force x distance |

The amount of work done is measured in | Joules |

The rate at which energy is produced | is called power |

One horesepower is equal to | 746 Watts. |

Voltage = | energy divided by charge transferred |

Current = | Charge transferred divided by time |

Efficiency = | Energy Output divided by Energy Input |

AC frequency is the number | of cycles in a second |

In North America AC frequency | is 60 cycles per second |

Bi-metallic strips are used in | circuit breakers |

Bi-metallic strips bend due to | different coefficients of expansion |

Polarized plugs have one prong | that is wider than the other |

Electrical Power = | Voltage x Current |

One hertz is equal to | one cycle per second |