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: Parallel Plate Capacitor

  1. Apr 26, 2007 #1
    A parallel-plate capacitor has an area of 4.77 cm2, and the plates are separated by 1.06 mm with air between them. It stores a charge of 403 pC. What is the potential difference across the plates of the capacitor?

    alright so i changed the area to .0477m^2. then i changed the distance between the plates to .00106m. i used 1.00054 as the dielectric constant. and i changed the charge to 403E-12C.

    then i took 403E-12=((1.00054)(8.85E-12)(.0477)/(.00106))V

    and i get V to equal 1.01V and its wrong. any help is appreciated.
  2. jcsd
  3. Apr 26, 2007 #2


    User Avatar
    Science Advisor
    Homework Helper

    For one thing, 4.77 cm^2 is 0.000477 m^2.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook