Earth’s magnetic field and parallel action

[PengKuan Em]

The magnetic field of the earth is uniform on its surface. The resultant Lorentz force a uniform magnetic field exerts on a coil of any shape is zero. The torque perpendicular to a flat coil is also zero. So, a current carrying coil in the magnetic field of the earth should stay immobile. However, my experiment shows that the test coil rotates in its plane. See the video of this experiment: http://youtu.be/JKMG8jY1RRg 

Please read the article at 

Earth’s magnetic field and parallel action 

http://pengkuanem.blogspot.com/2015/06/earths-magnetic-field-and-parallel.html

or Earth’s magnetic field and parallel action (video included)

https://www.academia.edu/12926460/Earth_s_magnetic_field_and_parallel_action_video_included_