46. An electron flies into a flat capacitor parallel to its plates with a velocity υ0 = 2.0 ∙ 107 m / s. The field strength in the capacitor is E = 2.5 ∙ 104 V / m, the capacitor length is l = 80 mm. Determine the value of υ and the direction of the velocity of the electron at the time of departure from the capacitor.

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)