Thumb of right hand points in direction of conventional current flow, fingers point in direction of circular magnetic field around conductor.
Right-hand rule #2 (coil)
Curled fingers of right hand point in direction of conventional current flow, thumb points in direction of magnetic field around conductor.
Watch an MIT lecture on this topic of magnetism and right-hand rules:
http://www.youtube.com/watch?v=qqkUeQ0nsF8&feature=related
(the lecturer talks about what we have learned during the first ten minutes of the video)
I can't change the direction of the wind, but I can adjust my sails to always reach my destination. See the link below for more info.
ReplyDelete#direction
www.ufgop.org