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Multiple Choice Question Based on Passage
The Cyclotron
The cyclotron is a device which is used to accelerate charged particles such as protons, deuterons, alpha particles, etc. to very high energies. The principle on which a cyclotron works is based on the fact that an electric field can accelerate a charged particle and a magnetic field can throw it into a circular orbit. A particle of charge +q experiences a force qE in an electric field E and this force is independent of the velocity of the particle. The particle is accelerated in the direction of the field. On the other hand, a magnetic field at right angles to the direction of motion of the particle throws the particle in a circular orbit in which the particle revolves with a frequency that does not depend on its speed. A modest potential difference is used as a source of electric field. If a charged particle is made to pass through this potential difference a number of times, it will acquire an enormously large velocity and hence kinetic energy.
Cyclotron is not suitable for accelerating