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