Particle Accelerators: a Cyclotron Is Designed with a Magnet That

Multiple Choice

Particle accelerators: A cyclotron is designed with a magnet that produces a magnetic field of 1.2 T. When refurbished, the magnet is replaced by one that produces a 1.5-T field. How does the maximum kinetic energy achieved by the protons change compared to their previous maximum kinetic energy?

A) It increases by 25%.
B) It decreases by 25%.
C) It increases by 56%.
D) It decreases by 56%.
E) It does not change.