# 6.3 And 6.4: Question Preview (ID: 12970)

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Electrical power is the rate at which what is done |
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a) energy | b) forces | c) pressure | d) electrical work | |

Which of the following is not a formula for electrical power? |
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a) work/time | b) current squared times resistance | c) voltage squared times resistance | d) V*q/t | |

If you are given a problem with power and voltage, what would you do to find current |
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a) power times voltage | b) power divided by voltage | c) voltage divided by power | d) voltage plus power | |

If you are given a current of 3 amps and a voltage of 2 volts, what is your power? |
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a) 6 meters | b) 6 lbs/sec | c) 6 watts | d) 6 hp | |

How much current flows through a 600 W toaster in use on a 120 V circuit? |
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a) 480 A | b) 5 A | c) 0.2 A | d) 72000 A | |

The power company measures your energy usage in what units? |
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a) watts | b) kWh | c) Wh | d) V*A | |

What does q stand for in an equation? |
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a) quantity | b) quality | c) charge | d) heat | |

One watt = ? |
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a) 3.413 Btu/hr | b) 2545 Btu/hr | c) 1 Btu/hr | d) 14.3 Btu/hr | |

1 hp = |
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a) 0.239 cal/sec | b) 0.324 cal/sec | c) 178.2 cal/sec | d) 1 cal/sec | |

1 hp = |
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a) 746 watts | b) 550 watts | c) 0.293 watts | d) 1 watt | |

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