1. Not finding help here? Sign up for a free 30min 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!

Magnetic flux

  1. Mar 15, 2010 #1

    cerium

    User Avatar

    1. The problem statement, all variables and given/known data

    if a questions states that the angle of 66 degrees is below the horizontal is that the angle I put into the equation

    2. Relevant equations



    3. The attempt at a solution
     
    cerium, Mar 15, 2010
  2. jcsd
    Phys.org - latest science and technology news stories on Phys.org
  3. Mar 15, 2010 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    Hi cerium! :smile:
    erm :redface: … what equation? :wink:
     
    tiny-tim, Mar 15, 2010
  4. Mar 15, 2010 #3

    cerium

    User Avatar

    Sorry missed out the most important part
    ABcos(theata) cant find symbol for that.
    the question asked you to find magnetic flux I have worked out A and B but Im unsure what it means when it says : the angle is 66 degrees below the horizontal:
    Thanks
     
    cerium, Mar 15, 2010
  5. Mar 15, 2010 #4

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    Hi cerium! :smile:

    (have a theta: θ and a degree: º :wink:)

    (i still don't understand what this is about :redface:)

    I assume that θ is the angle between A and B,

    so what are A and B?
     
    tiny-tim, Mar 15, 2010
  6. Mar 15, 2010 #5

    cerium

    User Avatar

    The earths magnetic field at a certian location in the uk has a magnitude of 48x10-6T and is directed at 66 degrees below the horizontal.
    Determine the magnitude of flux of the earths magnetic field through a wedding ring of diameter 2.2cm when the ring is held in the horizontal plane.
    What is the magnitude of flux change when the ring is flipped through 180 degrees.

    It the angle that is bothering me
    Thanks
     
    cerium, Mar 15, 2010
  7. Mar 15, 2010 #6

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    ah!

    so B is 66º below the horizontal.

    ok, the flux through a surface (or through its boundary) is greatest when the surface is perpendicular to the field, ie when the normal to the surface is parallel to the field.

    So θ is the angle between B and the normal to the ring. :wink:
     
    tiny-tim, Mar 15, 2010
  8. Mar 15, 2010 #7

    cerium

    User Avatar

    I see so I would be using cos24 not cos66
     
    cerium, Mar 15, 2010
  9. Mar 15, 2010 #8

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    Yes. :smile:
     
    tiny-tim, Mar 15, 2010
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Magnetic flux

  1. Wire Magnetic Flux (Replies: 12)

  2. Magnetic flux through metal (Replies: 1)

  3. Magnetic flux (Replies: 1)

  4. Magnetic flux (Replies: 2)

  5. Gauss's Magnetic flux (Replies: 2)

Loading...