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Electric Circuits Question

  • Thread starter bobtheubs
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  • #1
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http://feat.putfile.com/profilepics/main/4/bobthebus-1313021205.jpg

Well this is my question, its not really homework or anything. Im just curious as to how you would do this. I was thinking that it would change at all. Since in a parallel circuit all the currents add up to the same number. So wouldnt you just divide 24 by 4, then minus 6 from the total I. Then times that by 3 and there you go. Thanks.
 
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Answers and Replies

  • #2
cristo
Staff Emeritus
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Could you write out the question please? I can't read that!!
 
  • #3
BobG
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Your voltage didn't change, but your resistance changed, so the current has to change.

The picture is hard to read, but I take it all the resistances are equal and the circuit is broken at P?

If so, you now have a parallel circuit with three branches instead of four. If you work both equations using R and simplify, the difference between them should be pretty obvious.
 

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