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This text is meant to accompany class discussions. It is not everything there is to know about uniform circular motion. It is meant as a  prep for class. More detailed notes and examples are given in the class notes, presentations, and demonstrations (click here.)
Click for the questions that go with this reading
How to find the total resistance of a circuit.


You need to make sure you can identify when resistors are in series or parallel.

This 5 minutes YouTube video, http://www.youtube.com/watch?v=nz-8Cv8Ikl4, shows how to reduce a collection of resistors to a single resistor to find the total resistance of the circuit. Below is an image of what you page should look like when you are done with the example in the video.

  • Make sure your circuit drawings are LARGE like the one above.
  • Leaves LOTS of space between each step. This will probably be filled in later.
  • Only do one step at a time. In other words reduce one set of resistors as a time. For example, in the first circuit at the left, either the 8 Ω and 2 Ω could be reduced or the 6 Ω and 17 Ω could be reduced. Doing one step at a time means choosing one of these to do -NOT BOTH. In the example above 6 Ω and 17 Ω resistors where reduced to a single resistor.

 


by Tony Wayne ...(If you are a teacher, please feel free to use these resources in your teaching.)

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