14.  A charged particle with a charge-to-mass ratio of Q/m = 5.7 x 108 C/kg travels on a circular path that is perpendicular to a magnetic field whose magnitude is 0.72 T. How much time does it take for the particle to complete one revolution?

 

Solve for v

 

For a circular orbit we know the speed can be written in terms of radius and period as shown.  Solve for period.

 

 

 

 

 

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This page last updated on June 21, 2018