Question

Two point dipoles of dipole moment p1 and p2 are at a distance x from each other and p1 parallel to p2 the force between dipole is

Answer 1

Two equal and opposite charges separated by a finite distance constitute an electric pole.
The electrostatic force between two dipoles of dipole moments p1 and p2 lying at a separation x is

F=(1/4π∈₀ )  6p1p2/x⁴