An ion enters a mass spectrometer which has a 0.18 Tesla field perpendicular to an electric field of 1.6 kV/m and selects a velocity. The same magnetic field is then used to deflect the singly charged ion into a circular path of radius 12.5 cm

(a) What velocity was selected?
(b) What was the ion mass?


(a) 8.9 km/s
(b) 4.1 × 10-25 kg

Physics & Space Science

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