PhysicsLAB: Period of an Charged Particle in a Magnetic Field

AP Free Response Question
Period of an Charged Particle in a Magnetic Field

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	Prove that the time required for a particle of mass, m, and charge, q, to complete one orbit in a magnetic field, B, is constant and only depends on its ratio of mass/charge. That is, show that the particle's period is independent of both the value of the orbit's radius and the orbiting particle's speed.