![]() ![]() The SI unit of dipole moment is Coulomb-meter\((C-m)\)Īnswer: If charge \(q\) gets larger and the distance \(2a\) gets smaller and smaller such that the dipole moment, \(p=2\times 2a\) has finite value then such a dipole of negligibly small size is called an ideal or point dipoleįrequently asked questions on electric dipole and electric dipole moment Question 1: What is the difference between electric dipole and electric dipole moment? Answer: Electric dipole is just the separation of two equal and opposite charges separated a small distance whereas electric dipole moment measures the strength of an electric dipole. ![]() The Electric dipole moment direction is from negative charge to positive charge.In this figure the electric dipole moment \(\vecĪbove equation gives Electric dipole moment formula Center of mass of negative and positive charges does not coincide in a water molecule They have permanent dipole moments because the center of their positive charges does not fall exactly over the center of their negative charges.Figure given below shows molecule of water. Molecules like \(H_2O,\,\, HCl,\,\, CH_3COOH\) are electric dipoles and have permanent dipole moments. Examples of electric dipole:- Dipoles are common in nature.Total charge of the dipole is zero but electric field of the dipole is not zero as charges q and -q are separated by some distance and electric field due to them when added is not zero.Electric dipole is a pair of equal and opposite charges, \(+q\) and \(-q\), separated by a very small distance.
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