MP Board · Class 12 · Physics · Electric Charges and FieldsDefine electric dipole moment. Is it a scalar or a vector quantity? Mention its SI unit.

An electric dipole moment is defined as the product of the magnitude of one of the charges forming an electric dipole and the distance separation between the two point charges. Mathematically, $\vec{p} = q \times 2\vec{a}$. It is a vector quantity, and its direction is always pointed from the negative charge to the positive charge along the dipole axis. Its SI unit is Coulomb-meter ($\text{C}\cdot\text{m}$).