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: Magnetic Field Strength Needed

  1. May 12, 2010 #1
    1. The problem statement, all variables and given/known data
    Hi, I am trying to calculate the current and magnetic field strength needed to pick up a 0.3125 lb. piece of a channel lock plier made of ferritic stainless steel (they have a soft magnetic component) on its y axis (on the lighter part of the piece) at an 80 degree angle. The magnet would be located 9.36 in. above the piece of steel.

    2. Relevant equations
    Fb = ILB
    Fb = qvB
    B = ([tex]\mu[/tex]0I)/[4pi(y)]

    3. The attempt at a solution
    I drew a freebody diagram and found that the magnetic force needed to pick up the piece of channel lock plier would be 12.3N. I did more research and found that a magnetic field force would only be exerted on moving charge particles.

    Now I am stumped on how to find the current and magnetic field strength without knowing the other.
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted