A singly charged positive ion has a mass of 3.20 × 10-26 kg. After being accelerated from rest through a potential difference of 875 V, the ion enters a magnetic field of 0.42 T along a direction perpendicular to the direction of the field. What is the radius of the path of the ion in the field?
A) 2.23 cm
B) 2.40 cm
C) 4.45 cm
D) 8.74 cm
Correct Answer:
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