An electric dipole of moment `p` is kept at a distance `r` form an infinte long charged wire of linear charge density `lambda` as shown.Find the force acting on the dipole?

An electric dipole of moment `p` is kept at a distance `r` form an inf

1.	An electric dipole of moment `p` is kept at a distance `r` form an infinte long charged wire of linear charge density `lambda` as shown.Find the force acting on the dipole?
Answer» Fields intensity at a distance `r` form the line of charge is `e=(lambda)/(2piepsilon_(0)r)` The force on the dipole is `F=-p(dE)/(dr)` `=-p[(-lambda)/(2piepsilon_(0)r^(2))]=(plambda)/(2piepsilon_(0)r^(2))` Hence the net force on dipole due to the wire will be attractive.

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An electric dipole of moment `p` is kept at a distance `r` form an infinte long charged wire of linear charge density `lambda` as shown.Find the force acting on the dipole?

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