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JEE Main2005PhysicsMagnetic Effects of CurrentActual

A charged particle of mass m and charge q travels on a circular path of radius r that is perpendicular to a magnetic field B . The time taken by the particle to complete one revolution is

Options

  1. A2 mq B
  2. B2 q^2 B m
  3. C2 q B m
  4. D2 m q B

Correct answer

D. 2 m q B

Step-by-step solution

m ^2 r = Bq r = Bq / m T = 2 m qB

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