Electrostatics

A square shaped aluminium coin weighs \(0.75 \mathrm{~g}\) and its diagonal measures \(14 \mathrm{~mm}\). It has equal amounts of positive and negative charges. Suppose those equal charges were concentrated in two charges \((+Q\) and \(-Q)\) that are separated by a distance equal to the side of the coin, the dipole moment of the dipole is