What is the direction of electric dipole moment?
An electric dipole moment is defined as a pair of equal and opposite charges separated by a distance. The direction of an electric dipole is always from the negative charge to the positive charge. The dipole moment is a vector quantity.
The electric dipole moment vector is represented by μ
μ = q * d
where μ is the dipole moment vector, q is the magnitude of the charge, and d is the distance between the charges.