An electron that has passed through an accelerating potential difference of U = 10 kV flies in a vacuum into a uniform magnetic field of strength H = 79.6 kA/m at an angle a = 53° to the direction of the magnetic field lines. Find the radius and pitch of the spiral along which the electron will move in the magnetic field. Neglect the force of gravity acting on the electron. The mass of the electron is m = 9.1·10-31 kg, its charge e = 1.6·10-19 C.

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