60. A proton flies into a flat, horizontally positioned capacitor parallel to its plates with a velocity υ0 = 1.2 ∙ 105 m / s. Field strength inside the capacitor E = 3 kV / m; the length of the capacitor plates is l = 10 cm. How many times will the proton velocity υ when it leaves the condenser be greater than its initial velocity υ0?

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