Question
In which configuration will an electric dipole be in (i) permanent and (ii) temporary equilibrium when placed under a uniform electric field?
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Answer
(i) When the electric dipole moment $\overrightarrow{ P }$ and the electric field intensity $\vec{E}$ have the same direction.
(ii) When $\overrightarrow{ P }$ and $\overrightarrow{ E }$ are in opposite directions.
(ii) When $\overrightarrow{ P }$ and $\overrightarrow{ E }$ are in opposite directions.
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