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A doubly charged helium atom whose mass is 6.6*10^-27 kg is accelerated by a voltage of...

A doubly charged helium atom whose mass is 6.6*10^-27 kg is accelerated by a voltage of 2100 V. (A) What will be its radius of curvature if it moves in a plane perpendicular to a uniform .340 -T field? (B) What is its period of revolution
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Given Mass of helium atom, m 6.6 x 10%, kg Voltage V 2100 V Magnetic field B- 0.340 T Charge of helium isq-2e -21.60x10-19 kg

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