Suppose we have an electron orbiting a nucleus,in an anti-clockwise direction, in a magnetic field, with field lines coming out of the paper/plane. If it has a particular velocity v1,it will experience a Lorentz force due to the velocity, towards the center of the orbit. We assume the extra force only changes the velocity of the electron, keeping the radius of orbit constant. Now it has a new velocity v2, where v2>v1. In a purely classical approach, wouldn't the electron feel a greater Lorentz force due to the higher velocity? This would increase the velocity even more for a fixed orbit radius. Thus, shouldn't the velocity and thus the Lorentz force on the electron keep increasing infinitely? Urgent help would be appreciated.