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Homework Help: Differential Equation for Electronic Circuit

  1. Nov 30, 2006 #1
    Am I starting this correctly: (look at pic)
     

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  2. jcsd
  3. Nov 30, 2006 #2

    berkeman

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    Staff: Mentor

    Why is it i1+i2 in the first loop equation and i2-i1 in the second? Both currents are defined clockwise in your circuit? Also, you need to standardize on whether you are adding up voltage drops or rises. You have a positive number for both Vo and i1R, even though one is a voltage rise, and the other is a voltage drop....
     
  4. Nov 30, 2006 #3
    The only problem is the plus sign in the first equation, it should be a minus. Thanks
     

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    Last edited: Nov 30, 2006
  5. Nov 30, 2006 #4

    berkeman

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    You mean the only problem left is that first + sign? Have you fixed it since that new.PNG?
     
  6. Nov 30, 2006 #5
    There we go.
     
  7. Nov 30, 2006 #6

    berkeman

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    Wherever you go, there you are. Quiz question -- what movie is that from?
     
  8. Dec 1, 2006 #7

    SGT

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    When analyzing circuits with capacitors it is best to use voltages as independent variables, to get a differential instead of an integral equation.
     
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