Choose the correct statement regarding dependence of electric potential at a point due to an electric dipole: |
depends on the position vector $\vec{r}$ from the center of the dipole only depends on the dipole moment vector $\vec{p}$ only. inversely proportional to the distance from the center of the dipole inversely proportional to the square of the distance from the center of dipole and depends on the angle between the position vector $\vec{r}$ and dipole moment vector $\vec{p}$ |
inversely proportional to the square of the distance from the center of dipole and depends on the angle between the position vector $\vec{r}$ and dipole moment vector $\vec{p}$ |
The correct answer is Option (4) → inversely proportional to the square of the distance from the center of dipole and depends on the angle between the position vector $\vec{r}$ and dipole moment vector $\vec{p}$ The potential due to Dipole (V) is - $V=\frac{1}{4πε_0}\frac{P\cos θ}{r^2}$ Hence, Potential falls of by $r^2$ ⇒ $V∝\frac{1}{r^2}$ Potential also depends upon angle between position vector $\vec r$ and dipole moment $\vec p$. |