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Thread: Electromagnet

  1. #1 Electromagnet 
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    I have been trying and trying to get my electromagnets to repel. No matter which way I turn them, they attract! I thought electrons running one way would cause a north and south pole at the ends of the magnet, and opposites attract, but it seems that even the same type of poles attract! Is it even possible to make elevtromagnets repel each other?


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  3. #2  
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    Flip the battery around. That should reverse the poles of one magnet.


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  4. #3  
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    Did you wind the wire all in the same direction around each piece of iron? Having opposing directions may cause multiple poles, or none at all.
    Of all the wonders in the universe, none is likely more fascinating and complicated than human nature.

    "Two things are infinite: the universe and human stupidity; and I'm not sure about the universe."

    "Great spirits have always found violent opposition from mediocrities. The latter cannot understand it when a man does not thoughtlessly submit to hereditary prejudices but honestly and courageously uses his intelligence"

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  5. #4  
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    Quote Originally Posted by the old man View Post
    I have been trying and trying to get my electromagnets to repel. No matter which way I turn them, they attract! I thought electrons running one way would cause a north and south pole at the ends of the magnet, and opposites attract, but it seems that even the same type of poles attract! Is it even possible to make elevtromagnets repel each other?
    You might use a magnetic compass to confirm polarities. Are both electromagnets energized at the same time? Do they have similar pick-up force?
    Can you reverse current in one of them while the other stays like it had been?

    Added thought: It sounds as though one of your electromagnets is so much stronger than the other that it overwhelms the second one's electrically produced magnetism by inducing a stronger magnetism of opposite polarity onto the erstwhile "like pole".
    Last edited by dalemiller; August 21st, 2011 at 08:39 AM. Reason: Added thought, why hold out?
    "Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense." --Buddha (563BC-483BC)
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