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NEET UG

Practice

Electrostatics

Electric Charge

Quick practice

Question 1 of 5

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

A

\vec{E}=-\frac{\vec{p}}{4 \pi \in_{0} r^{2}}

B

\vec{E}=\frac{2 \vec{p}}{4 \pi \in_{0} r^{3}}

C

\overrightarrow{\mathrm{E}}=\frac{\overrightarrow{\mathrm{p}}}{4 \pi \in_{0} \mathrm{r}^{3}}

D

\vec{E}=-\frac{\vec{p}}{4 \pi \in_{0} r^{3}}

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