Electrostatics Question 704

Options:

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}} $

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Answer:

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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