Quote: a dipole is a close pair of electric charges; they occur commonly, e.g., water

Quotation Skeleton

There is an important special case in which … We call such a close pair of charges … [For example, a water molecule acts as a dipole.] … [p. 6-3] The potential of a dipole decreases as … 1/r). The electric field E of the dipole … [p. 6-4] On the axis, at .theta.=0, it is … [p. 6-7] Our result is that, far enough away … potential. … It is for these reasons that dipole fields …   Google-1   Google-2

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Additional Titles

Quote: a dipole's electric field decreases as 1/r^3 and is twice as strong on the axis as at 90 degrees to the axis

Quote: at a distance, any neutral collection of charges acts the same as a dipole

Related Topics

Topic: electricity and magnetism (50 items)