critical thinking

Discussion in 'Homework Help' started by bujak18, Nov 17, 2008.

  1. bujak18

    Thread Starter Active Member

    Nov 12, 2008
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    :DUsing parallel circuit rules and Q,V,and C relationships, prove that Ct=C1+C2 for parallel capacitors.

    need at least a paragraph for an answer!
     
  2. boks

    Active Member

    Oct 10, 2008
    218
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    Maybe change the topic?
     
  3. Ratch

    New Member

    Mar 20, 2007
    1,068
    3
    bujak18,

    No you don't. C1*V + C2*V = Q1 + Q2 = V(C1 + C2) . Ct = (Q1 + Q2)/V = C1+C2 .

    Ratch
     
  4. hgmjr

    Moderator

    Jan 28, 2005
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  5. Bernard

    AAC Fanatic!

    Aug 7, 2008
    4,176
    397
    Both replys from hgmjr's link & Ratch are good,if it will help I'll add some words. Prove the sum of individual caps. in parallel = to a single cap. C. As a given charge[Q] =CV, using two caps. C1 & C2 the charge on each is Q1=C1*V , Q2= C2*V, Q= Q1+Q2 or C1*V+ C2*V=CV; as caps are in parallel then all V's are the same, dividing by V gives: C1+C2=C
     
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