Ion with a charge (e - elementary charge) and a mass M = A * m (m - mass of the proton) is accelerated by the difference of potentials U and flies in a uniform magnetic field of strength H perpendicular to the lines of force. Ion trajectory has a radius R, while one revolution T. Determine U, if Z = 1; A = 2; R = 75 cm; H = 19 kA / m.

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