find the maximum speed of rod, Physics

A constant force of 10N is applied perpendicular to rod placed on 2 parallel rails .If the rod is having a resistance 10ohm but rails have zero resistance then maximum speed of rod is :(rails are long & frictionless & magnetic field is 10tesla).
 
Solution)    F=10N ,R=10Ω ,B=10T,           

   TOFIND ---->VELOCITY

    WE KNOW THAT  F=qvB

     10=(1.69*10^-19 )*V*10

      V=1/1.6*10^-19

      V=6.25*10^18

Posted Date: 3/12/2013 3:47:11 AM | Location : United States







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