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!

Magnetic field and its energy?

  1. Sep 28, 2007 #1
    1. The problem statement, all variables and given/known data
    If a magnetic field has length 1m and strength 1T. What is its energy contained in it?

    3. The attempt at a solution
    I have no idea as I only know how to calculate energy from a volume basis.
  2. jcsd
  3. Sep 29, 2007 #2
    [tex]F=\frac{-dU}{dx}[/tex], If you solve for U, you get your general expression and plug in the values there.
  4. Sep 29, 2007 #3


    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    This question looks nonsensical. Did you write it down exactly as it was given to you? Where is this from?
  5. Sep 29, 2007 #4
    The question was about the magnetic prominence which is a magnetic loop. I just simplified the data but its about a magnetic loop and finding how much energy it can contain.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?