A current loop generates a magnetic field all around itself as shown in picture.
My question is: does this magnetic field produce mechanical effects (force or torque) on the loop itself? If so, what effects are involved?
If we take two opposites elements of the loop and evaluate the force on each element due to this magnetic field the resultant is not zero, as shown in the figure below.
The its seems like there is a force downwards! But how can that happen? Will the loop start moving just because of its own magnetic field?