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The electric field of an electric dipole at a large distance is proportional to : |
$\frac{1}{r}$ $\frac{1}{r^2}$ $\frac{1}{r^3}$ $\frac{1}{r^4}$ |
$\frac{1}{r^3}$ |
Electric Field due to a dipole is given by $ E = \frac{p}{4\pi\epsilon_0 r^3}\sqrt{(3cos^2\theta + 1)}$ $\Rightarrow E \propto \frac{1}{r^3}$ |
