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Homework Help: Current in solenoid

  1. Aug 11, 2010 #1
    1. The problem statement, all variables and given/known data

    Solenoid is 1.8m long and 75 cm in diam. one layer tightly wound with wire that has diam 2mm. what current needs to run thru to get 1.5T

    2. Relevant equations
    N=2piR/(L) where R is radius of solenoid and L is wire lenght


    3. The attempt at a solution
    Once I find how many rolls I can solve the problem. I need help finding this
     
  2. jcsd
  3. Aug 11, 2010 #2
    Re: Solenoid

    How many times does 2 mm go in 1.8 m? Or think of it in terms of dimensional analysis. You've got 1turn/2mm.
     
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