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An electric dipole consists of two electric charges of equal magnitude and opposite sign. If the charges are q and −q and are located at a distance d from each other, then the electric field E at the point P in the figure is
By expanding this expression for E as a series in powers of d/D, show that E is approximately proportional to 1/D3 when P is far away from the dipole.
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Chapter 11 Solutions
Calculus, Early Transcendentals
- Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:CengageTrigonometry (MindTap Course List)TrigonometryISBN:9781337278461Author:Ron LarsonPublisher:Cengage Learning