1. Tardigrade
  2. Question
  3. Physics
  4. An electric dipole of moment vecp placed in a uniform electric field vecE has minimum potential energy when the angle between vecp and vecE is

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. An electric dipole of moment $\vec{p}$ placed in a uniform electric field $\vec{E}$ has minimum potential energy when the angle between $\vec{p}$ and $\vec{E}$ is

Electrostatic Potential and Capacitance

Solution:

$U=-p E \cos \theta$
It has minimum value when $\theta=0^{\circ}$
i.e., $\left(U_{P}\right)_{\min }=-p E \times \cos 0^{\circ}=-p E$