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NEET 2022
Exam
NEET
Year
2022
Subject
Physics
Chapter
Electrostatics

NEET 2022 · Physics · Electrostatics

Two point charges - q and + q are placed at a distance of L , as...

Two point charges −q- q and +q+ q are placed at a distance of LL, as shown in the figure.

Two point charges - q and + q are placed at a distance of L , as shown in the figure. The magnitude of electric field

The magnitude of electric field intensity at a distance R\left(R ≫ L\right) varies as

Options

  1. A1R3\dfrac{1}{{R}^{3}}
  2. B1R4\dfrac{1}{{R}^{4}}
  3. C1R6\dfrac{1}{{R}^{6}}
  4. D1R2\dfrac{1}{{R}^{2}}

Correct answer

A. 1R3\dfrac{1}{{R}^{3}}

Step-by-step solution

The given arrangement of charges forms a dipole.
Electric field due to a dipole.

E∝1R3E ∝ \dfrac{1}{{R}^{3}}

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