Blossom'sGirl Posted December 7, 2011 Share Posted December 7, 2011 This is a question copied directly out of the CPO Physical Science book using ohm's law I=V/R I get .75 ohms not 3 ohms. Am I missing something. (I hate studying electricity, that is why I went into mechanical engineering) b. A motor in a toy car needs 2 amps of current to work properly. If the car runs on four 1.5-volt batteries, what is the motorâ€™s resistance? Answer: 3 ohms You can look at the book here: We are in the Physical science book, Unit 4, p.200 http://alms.hermiston.k12.or.us/science-text-books Quote Link to comment Share on other sites More sharing options...
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