Task 31570.
Between the two flat parallel vertical plates spaced 0.5 cm, evenly droplet falls (m = 10 ^ -9 g) .If the potential difference is applied to the plate U = 400 in the droplet falls at an angle of 7 degrees 25 minutes to the vertical. Assuming that the velocity of the droplet is proportional to the force acting on it, determine the charge located therein.
Detailed solution with a short recording conditions, laws and formulas used in the decision, the withdrawal of the calculation formula and the answer.
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