NEET Physics Moving Charges and Magnetism Questions Solved

An alternating electric field of frequency v, is applied across the dees (radius=R) of a cyclotron that is being used to accelerate protons(mass=m).The operating magnetic field (B) used in the cyclotron and the kinetic energy (K) of the proton beam, produced by it, are given by

(a)B=mve and K=2mπ2v2R2

(b)B=2πmve and K=m2πvR2

(c)B=2πmve and K=2mπ2v2R2

(d)B=mve and K=m2πvR2

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