Solution: Basically were asking to prove that it wasnt possible unless taken in a relativistic regime. See the Right-Angle (Lewis-Tolman) Paradox where you can observe a torque in the moving frame but it does not result in any actual rotation
the problem is.
Consider two point charges +/- q embedded on a square dielectric in the x-y plane the dielectric is a perfect insulator and the charges cannot move or be neutralized. Assume that i) the origin of the coordinates is in the center of the square and the positive and negative...
yes there are no external E or B fields i think it has to do with relativity. the one particle creates a E field in its own frame which becomes distorted when it moves allowing there to be a non parallel component.
I am at a loss for how to start this problem.
t = r x F and F = q(E + v x B) i know but there is no external E or B field its just a dipole that moves with a speed v in the x direction the dipole is oriented with +q at (d,d,0) and -q @ (-d,-d,0)
how do i derive a torque?