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!

Capacitor Definition Question

  1. Jun 2, 2014 #1
    Would it be wrong to describe Capacitance as being the charge stored per unit volt?

    I have found on the internet that the definition of a Farad is the charge needed to cause one unit volt. Which means that the definition of Capacitance should surely be the same because the internet definition seems to be completely different to what I've previously learnt, no?

    Thanks for any help in advance.
  2. jcsd
  3. Jun 2, 2014 #2
    In fact, my textbook actually describes the capacitance of a capacitor as being the charge stored per unit pd. Is this the same as the charge needed to cause one unit pd in the circuit?
  4. Jun 2, 2014 #3

    Meir Achuz

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    It isthe same, but what is a pd?
  5. Jun 2, 2014 #4
    My apologies, I meant volt
  6. Jun 2, 2014 #5
    Thank you by the way!
  7. Jun 2, 2014 #6


    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    pd = potential difference, which is what the volt unit measures.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook