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!

Electric field

  1. Aug 30, 2015 #1
    Hi all! I know that this might be a stupid question, but I am very confused about a particular aspect of the electric field. I have seen these equations:
    E=-∇V and E=-∇V-∂A/∂t
    Could you guys explain how the electric field can be explained with or without -∂A/∂t
  2. jcsd
  3. Aug 30, 2015 #2


    User Avatar
    Science Advisor
    Homework Helper

    The first is for electrostatic case where the electric field is a conservative field (its curl vanishes), the second is in the case of electrodynamics where both electric and magnetic fields are changing with time. Have you taken EM course?
  4. Aug 30, 2015 #3
    Thanks, and no I havent.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Electric field
  1. Electric fields (Replies: 3)

  2. Electric fields (Replies: 4)

  3. Electric field (Replies: 3)

  4. Electric Field (Replies: 1)