An electric dipole of dipole moment vec{P} is | vedclass

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(B) Step $1$: The torque $\vec{	au}$ on an electric dipole in a uniform electric field is given by the cross product $\vec{P} 	imes \vec{E}$. Thus,

Vedclass · Accepted Answer

$I$ and $II$

Vedclass · Answer

(B) Step $1$: The torque $\vec{	au}$ on an electric dipole in a uniform electric field is given by the cross product $\vec{P} 	imes \vec{E}$. Thus, Statement $I$ is correct.Step $2$: The potential energy $U$ of an electric dipole in a uniform electric field is defined as $U = -\vec{P} \cdot \vec{E}$. Thus, Statement $II$ is correct.Step $3$: In a uniform electric field, the force on the positive charge is $q\vec{E}$ and on the negative charge is $-q\vec{E}$. The net force is $q\vec{E} + (-q\vec{E}) = 0$. Thus, Statement $III$ is incorrect.Step $4$: Since only Statement $I$ and Statement $II$ are correct, option $B$ is the correct answer.

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