In gravity free space, a bead of charge 
 and mass 3mg is threaded on a rough rod of friction coefficient 
= 0.3. A magnetic field of magnitude 0.2 T exists perpendicular to the rod. The bead is projected along the rod with a speed 4m/s. How much distance (in m) will the bead cover before coming to rest?
In gravity free space, a bead of charge and mass 3mg is threaded on a rough rod of friction coefficient = 0.3. A magnetic field of magnitude 0.2 T exists perpendicular to the rod. The bead is projected along the rod with a speed 4m/s. How much distance (in m) will the bead cover before coming to rest?
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1 Answer
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N = qvB 
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