An electron accelerated by the potential difference V0 passes between the plates of a flat capacitor and then hits the screen. The distance between the plates d is much smaller than the length of the plates l, and the distance between the capacitor and the screen L is much larger than l. When the potential difference on the capacitor plates is V ≪ V0, the deviation of the electron x on the screen is proportional to the product LV and inversely proportional to V0: x ≈ kV0VL. Determine the coefficient k.