NEET Physics Electric Potential MCQ Question with Solution

A dipole with dipole moment $p$ is placed in a uniform electric field $E$ . If the angle between the dipole moment and the electric field is $\theta$ , what is the potential energy of the dipole?

A

$-pE \cos \theta$

B

$pE \cos \theta$

C

$\frac{pE}{\cos \theta}$

D

$pE \sin \theta$

Correct Answer

Option A

Detailed Explanation

The potential energy of a dipole in a uniform electric field is given by $-p \cdot E$ , where $p$ is the dipole moment and $E$ is the electric field. The dot product implies $-pE \cos \theta$ .

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