The electric field at a point on the equatorial plane at a distance $r$ from the centre of a dipole having dipole moment $\overrightarrow{p}$ is given by,($r >>$ separation of two charges forming the dipole,$\varepsilon_{0}$ - permittivity of free space)

  • A
    $\overrightarrow{E}=-\frac{\overrightarrow{p}}{4 \pi \epsilon_{0} r^{3}}$
  • B
    $\overrightarrow{E}=\frac{\overrightarrow{p}}{4 \pi \epsilon_{0} r^{3}}$
  • C
    $\overrightarrow{E}=\frac{2 \overrightarrow{p}}{4 \pi \epsilon_{0} r^{3}}$
  • D
    $\overrightarrow{E}=-\frac{\overrightarrow{p}}{4 \pi \epsilon_{0} r^{2}}$

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