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Most Important Selected Qs for JEE AdvancedPhysicsMagnetic Effects of Current

A particle with positive charge Q and mass m enters a magnetic field of magnitude B , existing only to the right of boundary YZ . The direction of the motion of the particle is perpendicular to the direction of B. Let T =2 ( m QB ) . The time spent by the particle in the field will be

Options

  1. AT
  2. B2 T
  3. CT ( +2 2 )
  4. DT ( -2 2 )

Correct answer

C. T ( +2 2 )

Step-by-step solution

Here the total time is given T Time spent m the region is ( +2 ) Hence total time spent = T ( +2 2 )

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