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(B) The electric dipole moment $\vec{p}$ is directed from the negative charge $(-q)$ to the positive charge $(+q)$.On the equatorial plane of an elect

Vedclass · Accepted Answer

$180$

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(B) The electric dipole moment $\vec{p}$ is directed from the negative charge $(-q)$ to the positive charge $(+q)$.On the equatorial plane of an electric dipole,the net electric field $\vec{E}_{net}$ is directed anti-parallel to the dipole moment vector $\vec{p}$.Mathematically,the electric field on the equatorial plane is given by $\vec{E} = -\frac{1}{4\pi\epsilon_0} \frac{\vec{p}}{r^3}$.Since the electric field vector is in the opposite direction to the dipole moment vector,the angle between them is $180^{\circ}$.Therefore,the correct option is $B$.

The angle between the electric field and the dipole moment at any point on the equatorial plane of an electric dipole is . . . . . . . (in $^{\circ}$)

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