38. The flow of electrons that have received their speed as a result of passing the potential difference of 5000 V, flies into the middle of a flat capacitor. What is the least voltage you need to apply to the plates of the capacitor so that the electrons do not fly out of it? Capacitor dimensions: length 5 cm, the distance between the plates 1 cm.
Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)
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