A cyclotron with a magnetic field of 1.2 T is used to accelerate protons. How does the time for the protons to complete one orbit change when the radius of their orbit changes from 10 cm to 22 cm?
A. It increases by a factor of 2.2.
B. It decreases by a factor of 2.2.
C. It increases by a factor of 4.8.
D. It decreases by a factor of 4.8.
E. It stays the same.
E. It stays the same.
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