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Voltage Division with Multiple Voltage Sources Seperated by Resistors

  • Thread starter TheCarl
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  • #1
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Homework Statement


Find the voltage across the 10 ohm resistor.
http://www.spacemonkeybrewing.com/images/circuit.jpg [Broken]

Homework Equations



KVL - Sum of Voltages in a closed loop equal zero.
Ohms - V=IR
Voltage Divide - Va1 = (R1/(R1+R2...))Vs

The Attempt at a Solution



This is only the second week into the introduction of electrical circuits and I'm not sure where to start here. It doesn't look like I can use KVL, Ohms law or the voltage division equation to solve this problem. I would know how to solve it if it only had a single voltage source or voltage sources that aren't divided by resistors. Any assistance would be greatly appreciated.
 
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Answers and Replies

  • #2
NascentOxygen
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Hi TheCarl, http://img96.imageshack.us/img96/5725/red5e5etimes5e5e45e5e25.gif [Broken]

You can replace the 3 voltage sources by 1. Try that and see how you go. :smile:
 
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  • #3
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So are you saying that basically the circuit above would be equivilant to this:
http://www.spacemonkeybrewing.com/images/circuit2.jpg [Broken]

And therefore V = (10Ω/(15Ω+10Ω+20Ω+5Ω))6V = 6/5V ?


P.S. Thanks for the quick reply.
 
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  • #4
NascentOxygen
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And therefore V = (10Ω/(15Ω+10Ω+20Ω+5Ω))6V = 6/5V
That's the idea.
 
  • #5
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Thank you so much!
 
  • #6
NascentOxygen
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For future reference: your pic archive site seems slow or unreliable, and the pic is some of the time failing to appear. I venture that some people will be reading this and wondering where's the circuit we are discussing? For next time, I suggest that you try out another site, or else attach your pic to your post.
 
  • #7
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Here are the two photos in order in case they don't show up in the above threads.
 

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