1. Not finding help here? Sign up for a free 30min 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!

Getting E-Field from magnetic field intensity, H

  1. Jun 3, 2008 #1
    1. The problem statement, all variables and given/known data
    Given the magnetic field intensity, H, find E.
    H=[tex]\hat{y}[/tex]6cos(2z)sin((2x10^7)t - 0.1x)

    2. Relevant equations
    [tex]\nabla[/tex] [tex]\times[/tex] E = [tex]\frac{- \partial B}{\partial t}[/tex]

    3. The attempt at a solution
    Since we have H, we can use the relationship that [tex]\mu[/tex]H = B and then take the partial derivative of that with respect to time. That would give us this quantity...

    [tex]\frac{- \partial B}{\partial t}[/tex]

    Now, how do I get to E-field from that? How do you "uncurl" that?
  2. jcsd
  3. Jun 4, 2008 #2
    You could use Stokes's theorem to "uncurl" E. Do you see where it's headed?

    Also, just to help you out in the future, anything with Calc 3 doesn't really belong in intro physics, and you may be helped quicker in advanced physics for questions like this.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Getting E-Field from magnetic field intensity, H
  1. E and magnetic field (Replies: 12)