CBSE 2026 · Region 3 · Set 2 · Q4 · 1 mark

An electric dipole $\displaystyle \overrightarrow{\mathrm{P}}=2 \mathrm{qa} \hat{\mathrm{i}}$ is placed in x-y plane, centred at the origin. Let $\displaystyle \mathrm{E}_{1}$ and $\displaystyle \mathrm{E}_{2}$ be the magnitudes of electric field at a point distant r (>> a) from its centre, along its axis and on its equatorial plane, respectively. Then the value of $\displaystyle \left(\frac{\mathrm{E}_{1}}{\mathrm{E}_{2}}\right)$ is :

(A)

$\displaystyle \frac{1}{4}$

(B)

$\displaystyle \frac{1}{2}$

(C)

$\displaystyle 2$ (D) $\displaystyle 4$

CBSE Class 12 Physics past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.