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Question: An electric dipole of dipole moment P is kept perpendicular to the plates of a parallel plate capaci...

An electric dipole of dipole moment P is kept perpendicular to the plates of a parallel plate capacitor as shown. The potential energy of the dipole is given as-

A

zero

B

−2σP∈0\frac{- 2\sigma P}{\in_{0}}

C

−σP∈0\frac{- \sigma P}{\in_{0}}

D

σP∈0\frac{\sigma P}{\in_{0}}

Answer

−σP∈0\frac{- \sigma P}{\in_{0}}

Explanation

Solution

Here angle q between and is 0ŗ

\ U = – PE cos 0 = – P = –