|MadSci Network: Physics|
Dear John, I am not sure I understand your question. Are you asking if, when one shoots a charged particle into a region with a magnetic field, the radius of circle described by the motion of the particle perpendicular to its original motion can increase exponentially, the answer is certainly yes. Recall that the formula for determining this radius is inversely proportional to both the strength of the magnetic field and the velocity of the particle. If either of them changes expoentially, then yes, certainly, the radius in question will change exponentially. I hope this answers your question!
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