Electric charge is present around us and there are many different examples to prove this phenomenon. Have you ever tried rubbing a comb-over a towel and brought it close to your hair? You will see that some of your hair tend to get attracted to the comb. This is basically due to the generation of Electric Charge. In this section, we will try to decode the behavior of opposite charges when kept at a distance. This is the concept of the Electric Dipole which is a vital portion of electrostatics.

Introduction to Electric Dipole

Electric Dipole

An electric dipole is tagged as a pair of objects which possess equal & opposite charges, parted by a significantly small distance. Let us take two charges having equal magnitude ‘Q’, which are separated by the distance ‘D’.

Here we assume the first charge to be negative, while the second charge stays positive. You can call this particular combination as an electric dipole. Hence, we can state that an electric dipole is formed due to the grouping of equal & opposite charges when separated by an assured distance.

Browse more Topics under Electric Charges And Fields

Conductors and Insulators

Electric Charge

Basic Properties of Electric Charge

Coulomb’s Law

Electric Field

Electric Field Lines

Gauss’s Law

Applications of Gauss’s Law

Electric Flux

Dipole in a Uniform External Field

What is the Dipole Moment?

It is basically the exact measure of the strength associated with an electric dipole. Based on scientific and mathematical conclusions, the dipole moment magnitude is the product of either of the charges and the separation distance (d) between them. Do remember that, the dipole moment is a vector measure whose direction runs from negative to a positive charge.

The formula for electric dipole moment for a pair of equal & opposite charges is p = qd, the magnitude of the charges multiplied by the distance between the two.