Задача 31513.

The charge moves in a vacuum in a straight line at a speed of 10 m / s in mutually perpendicular magnetic and electric fields. What should be the ratio of the intensities of these fields to take place such a movement? As directed velocity of the charge with respect to the magnetic and electric fields? The task of drawing explain.

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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