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 Question

  1. Mar 25, 2007 #1
    1. The problem statement, all variables and given/known data
    What is the underlying basis of the magnetic field in a magnetized piece of iron?

    3. The attempt at a solution

    I have absolutely no clue what this problem is asking or how to go about answering it.

    Thanks in advance
     
  2. jcsd
  3. Mar 25, 2007 #2
    Have you learned of anything that produces a magnetic field?
     
  4. Mar 25, 2007 #3
    Such as the earth and electric current?
     
  5. Mar 25, 2007 #4
    Yes, good.
    An electric current is what again and might we find that in matter somehow? (I am leaving this vague for now)
     
  6. Mar 25, 2007 #5
    Electric current is the rate of charge flow through a given point. I think we can find electric current in matter because there can be charges acting upon each other?
     
  7. Mar 25, 2007 #6
    Okay.
    Take a simplified view of the atom. Is there any current associated with this picture?
     
  8. Mar 25, 2007 #7
    There can be if it has a charge?
     
  9. Mar 25, 2007 #8
    Well, what is an atom composed of? Think of maybe the Bohr model, ie. no need for full on quantum here.
     
  10. Mar 25, 2007 #9
    It is composed of protons, neutrons, electrons. Is charged atomic particles the answer to this question?
     
  11. Mar 25, 2007 #10
    What about those electrons? Do they have motion about the nucleus?
     
  12. Mar 25, 2007 #11
    Yes they move around the nucleus.
     
  13. Mar 25, 2007 #12
    Do electrons have charge?
     
  14. Mar 25, 2007 #13
    Yes they have a negative charge.
     
  15. Mar 25, 2007 #14
    So you have a charge moving, is that a current?
     
  16. Mar 25, 2007 #15
    Yes it is a current.
     
  17. Mar 25, 2007 #16
    Nice! Now you may want to flush this out further by considering the motion (orbit) of the electron and what the field would look like from this one "atom."
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Magnetic Field Question
Loading...