The electron is emitted with a low initial speed by the cathode of the lamp, made in the form of a flat capacitor. If the anode potential is maintained equal to V, then the electron will reach the anode after time T. How long will it take the electron to reach the anode if the latter's potential alternates between V and zero? The duration of time intervals during which the anode potential is equal to V, T1 = T/10, the duration of intervals at zero potential T2 = T/20.
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