The value of electric potential at any point due to any electric dipole is
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(d) Potential due to dipole in general position is given by
$V = \frac{{k.p\cos \theta }}{{{r^2}}}$ $==>$ $V = \frac{{k.p\cos \theta \,r}}{{{r^3}}} = \frac{{k.\,(\vec p.\vec r)}}{{{r^3}}}$
$V = \frac{{k.p\cos \theta }}{{{r^2}}}$ $==>$ $V = \frac{{k.p\cos \theta \,r}}{{{r^3}}} = \frac{{k.\,(\vec p.\vec r)}}{{{r^3}}}$
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