1. PF Contest - Win "Conquering the Physics GRE" book! Click Here to Enter
    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!

Energy Stored in a Capacitor

  1. Feb 17, 2009 #1
    A capacitor is completely charged with 650 nC by a voltage source that had 375 V.

    The initial air gap of the capacitor above was 7 mm. What is the stored energy if the air gap is now 11 mm?
  2. jcsd
  3. Feb 17, 2009 #2


    User Avatar
    Homework Helper

    Has the voltage source been disconnected before increasing the distance?
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook