1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Solenoid turns

  1. Mar 30, 2010 #1
    1. The problem statement, all variables and given/known data
    Prove that the number of turns per length on a solenoid is equal to 1/(diameter).


    2. Relevant equations
    A= 2(pi)(R)


    3. The attempt at a solution

    number of turns= length/(2pi*radius)
    number of coils per length=(length/(2pi*radius))/length
    number of coils per length=1/(2pi*radius)

    I'm not sure why I have an extra pi. Did I do something wrong?

    Thanks for any help.
     
  2. jcsd
  3. Mar 30, 2010 #2

    rl.bhat

    User Avatar
    Homework Helper

    Re: Solenoid

    In the problem the diameter is the diameter of the wire, not the diameter of the solenoid.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook