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Simple Question

  1. Jan 27, 2010 #1
    1. The problem statement, all variables and given/known data

    What is something other than a battery that I can use for an electromagnet that won't lose power and you can pick how many volts you want.


    2. Relevant equationsnone



    3. The attempt at a solutionnone
     
  2. jcsd
  3. Jan 27, 2010 #2

    kuruman

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    A power supply.
     
  4. Jan 28, 2010 #3
    Can you give more details. I am kind of dumb. Where can I get it and for how much?
     
  5. Jan 28, 2010 #4

    kuruman

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    Just google it and you will get millions of matches.
     
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