Задача 31259.

Electrons moving in a vacuum at a speed V = 10 ^ 6 m / s enters the uniform magnetic field H = 1 kA / m at an angle of 30 ° to the lines of the field. To determine the radius of the spiral line R, on which will move the electron and its step.

Detailed solution shorthand terms, formulas, laws used in the decision, the withdrawal of the calculation formula and the response.
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