A point dipole $\vec p = - {p_0}\hat x$ is kept at the origin. The potential and electric field due to this dipole on the $y-$ axis at a distance $d$ are, respectively : (Take $V = 0$ at infinity)
JEE MAIN 2019, Medium
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$V=0$
$E=-\frac{K \vec{P}}{r^{3}}$
$=-\frac{\vec{p}}{4 \pi \varepsilon_{0} d^{3}}$
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