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Magnetic Field Question

  • Thread starter Emily6
  • Start date
  • #1
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Homework Statement


What is the underlying basis of the magnetic field in a magnetized piece of iron?

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
 

Answers and Replies

  • #2
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Have you learned of anything that produces a magnetic field?
 
  • #3
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Such as the earth and electric current?
 
  • #4
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Yes, good.
An electric current is what again and might we find that in matter somehow? (I am leaving this vague for now)
 
  • #5
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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?
 
  • #6
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Okay.
Take a simplified view of the atom. Is there any current associated with this picture?
 
  • #7
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There can be if it has a charge?
 
  • #8
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Well, what is an atom composed of? Think of maybe the Bohr model, ie. no need for full on quantum here.
 
  • #9
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It is composed of protons, neutrons, electrons. Is charged atomic particles the answer to this question?
 
  • #10
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What about those electrons? Do they have motion about the nucleus?
 
  • #11
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Yes they move around the nucleus.
 
  • #12
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Do electrons have charge?
 
  • #13
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Yes they have a negative charge.
 
  • #14
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So you have a charge moving, is that a current?
 
  • #15
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Yes it is a current.
 
  • #16
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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."
 

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