Question

expression for electric potential at a point due to a short electric dipole. Mention one contrasting feature of electric potential of dipole at a point as compared to that due to a point charge.

Answer 1

We know
Expression for electric potential $V=k\frac{P\cos \theta }{r^2}wherek=\frac{1}{4{\mathrm{\pi \epsilon }}_0}$
Potential at a point due to a dipole is directly proportional $\frac{1}{r^2}$ and for point charge it is proportional to $\frac{1}{r}$