1.

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)

A. \(\frac{{\left| {\vec p} \right|}}{{4\pi {\epsilon_0}{{\rm{d}}^2}}},\frac{{\vec p}}{{4\pi {\epsilon_0}{{\rm{d}}^3}}}\)
B. \(0,\frac{{ - \vec p}}{{4\pi {\epsilon_0}{{\rm{d}}^3}}}\)
C. \(0,\frac{{\vec p}}{{4\pi {\epsilon_0}{{\rm{d}}^3}}}\)
D. \(\frac{{\left| {\vec p} \right|}}{{4\pi {\epsilon_0}{{\rm{d}}^2}}},\frac{{ - \vec p}}{{4\pi {\epsilon_0}{{\rm{d}}^3}}}\)
Answer» C. \(0,\frac{{\vec p}}{{4\pi {\epsilon_0}{{\rm{d}}^3}}}\)


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