Question: A doubly charged helium atom, who mass is 6.6 X 10-27 Kg is accelerated by a voltage of 2400V. (a) What will be its radius

A doubly charged helium atom, who mass is 6.6 X 10-27 Kg is accelerated by a voltage of 2400V.
(a) What will be its radius of curvature in a uniform 0.240-T field?
(b) What is its period of revolution?

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