1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Capacitor Lab (Capacitor as source)

  1. Dec 1, 2008 #1
    1. The problem statement, all variables and given/known data

    [​IMG]

    Basicly, I have to get charges and voltages as these switches are opened and closed on this capacitor circuit.

    First, Switch A closed, B open. (C1 is charged.)

    Then, switch A opens, and B closes.

    Vi=5v
    C1=4.6x10^-6F
    C2=2.3x10^-6F

    2. Relevant equations

    Q = VC

    3. The attempt at a solution

    Okay, so the first part is easy. Charge on the the first capacitor Q = VC, V=5v, Q1i= 2.3X10^-5 C

    Now, the second part. Is charge conserved? So that
    Q1i=Q1f+Q2f

    Expanding that with Q=VC,
    C1V1i = C1V1f + C2V2f

    Can we say that V1f = V2f? So Vf would be 3.35v? Then charges could be found on each capacitor... Is this the correct way to go about this?
     
  2. jcsd
  3. Dec 1, 2008 #2
    Maybe this should be moved to the Introductory Physics help forum?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Capacitor Lab (Capacitor as source)
  1. Capacitor Discharge (Replies: 2)

  2. Capacitor Help (Replies: 3)

  3. Spherical Capacitors (Replies: 1)

  4. Capacitor Networks (Replies: 6)

Loading...