Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Cube of capacitors

  1. Sep 20, 2006 #1
    If I have a cube made out of capacitors, that's one capacitor for everyside for a total of 12 capacitors. Each capacitor is C=4.71 pF. How would I even begin to go about finding the total capacitance? :yuck:
  2. jcsd
  3. Sep 20, 2006 #2


    User Avatar

    Staff: Mentor

    I assume you mean the total capacitance between diagonal corners.

    Start with a little easier problem -- a cube of resistors. There may be a shortcut way, but write the node equations for each of the 8 vertexes, and take advantage of the fact that the resistors have equal value. After you see how that works out, do the cube of capacitors.

    Problems like this get harder when the components are of different values.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook