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Homework Help: Desperate for help !

  1. Jan 22, 2010 #1
    Desperate for help!!!!!!!!!!!!!!!!

    1. The problem statement, all variables and given/known data

    I am doing an electromagnet project. I am a bit lazy and was asking if you guys could give me a list of ALL the materials I need to compete in the science fair. I'm in 10th grade, and my question is which factor affects strength of electromagnet the most. Things like # of coils or thickness of wire.

    I would be extremely happy if you guys would help.

    2. Relevant equations

    3. The attempt at a solution I am having major stress in my life, and I just need someone to give me a list so I can go to the store and buy those materials.
  2. jcsd
  3. Jan 22, 2010 #2
    Re: Desperate for help!!!!!!!!!!!!!!!!

    Do your research, we dont give out answers here. Look up some articles on electromagnetism to look at what determines magnetic field strength and so forth.

    http://www.physicsclassroom.com/ might be a good place to start.


    Edit: shouldnt be too hard, the formula is [tex] B = \mu_0(\frac{N}{l})I [/tex] Look for the definition of magnetic field strength, if thats what your being asked to interpret.
  4. Jan 22, 2010 #3


    User Avatar

    Staff: Mentor

    Re: Desperate for help!!!!!!!!!!!!!!!!

    As has been said, we don't do your work for you. But I can point you to an introductory article that should get you started:


    Let us know if you have specific questions about the article.
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