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Physics · PYQ NEET UG 2022

हिन्दी

Two point charges \( -q \) and \( +q \) are placed at a distance of \( L \), as shown in the figure. The magnitude of electric field intensity at a distance \( R \) (\( R \gg L \)) varies as:

Question diagram
  1. A
    \( \frac{1}{R^4} \)
  2. B
    \( \frac{1}{R^6} \)
  3. C
    \( \frac{1}{R^2} \)
  4. D
    \( \frac{1}{R^3} \)
View Answer & Solution

Correct answer · Option D

\( \frac{1}{R^3} \)

Explanation

For a dipole, the electric field at a large distance varies inversely with the cube of the distance, i.e., \( E \propto \frac{1}{R^3} \).
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