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What is the difference between in pure dipole and physical dipole
what is the difference between in pure dipole and physical dipole
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Chandra prakash
A pure dipole is called "pure" is because it only has a dipole moment. A physical dipole will have quadrupole moments, etc. The spherical harmonic expansion of the potential has an infinite number of non-zero terms. .......if you have any doubt drop a msg best regards
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Somnath![best-answer]()
A pure dipole means there are two equal and opposite charge only separated by a small distance.It only have dupole moment.But for a charge distribusion in addition with dipole moment we will have quadrupole,octapole moment also.For charge distribusion dipole moment is not q*l, here we have to find the dipole moment for the whole distribusion.It is called physical dipole.