Even after the coil has been rotated 180 degrees, the motion will be continuous, since in the vertical, it will perform a rotation of 270 degrees, in this way, the torque will be canceled and the current will reverse its direction, repeating the cycle again. These attractions and repulsions, if coordinated effectively, will cause the rotor to rotate, although how such torques are struck, may vary between different engine types. At the ideal moment, the reversal of the current direction becomes an indispensable condition for the maintenance of the proper torques, so that it can guarantee the good operation of the motors VEM3613T.
In case the rotor is in equilibrium considered stable, with the resultant force and torque zero, it is the propitious moment and more suitable so that one can reverse the direction of the current in the coil. Thus, the poles will approach, so that the repulsion force becomes more intense. Since the coil already exhibits an angular movement to the left, it can continue to rotate to the same side as a rotational inertia, and the new torque provided by repulsive forces will contribute to the maintenance and acceleration of the rotational movement.