Answer:
the force exerted on the dipole = 0.11 N
Explanation:
Using F = (KQq/r^2) sin ∅
the distance of dipole to the line charge will be 30 cm, hence 1 st charge on the dipole -10 micro C is 29 cm and that to + 10 micro C is 31 cm (2 cm apart).
0.91 N with -ve charge and 0.80 to +ve charge. The difference is the force on the dipole i.e 0.11 N