A) \[E\propto \frac{1}{r}\]
B) \[E\propto \frac{1}{{{r}^{2}}}\]
C) \[E\propto \frac{1}{{{r}^{3}}}\]
D) \[E\propto \frac{1}{{{r}^{4}}}\]
Correct Answer: C
Solution :
[c] Intensity of electric field due to a Dipole \[E=\frac{P}{4\pi {{\varepsilon }_{0}}{{r}^{3}}}\sqrt{3{{\cos }^{2}}\theta +1}\Rightarrow E\propto \frac{1}{{{r}^{3}}}\]
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