1. Limited time only! Sign up for a free 30min personal 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!

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