12.50: A spatially uniform electric field is constrained within the circular re
6l0y0 5mny alsq3z68o2x iuk fgion of radius R as shown. The field is directed out of the plane of the page and its strength is decreasing uniformly with time. Which one of the following choices best represents the direction of the Lorentz force on the electron at the in
0 85q2lx6ouz m0as6knylf3yistant shown in the figure when the electron is moving up the plane of the page? Ignore gravity