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An electric dipole of dipole moment vecp...

An electric dipole of dipole moment `vecp` is oriented parallel to a unifrom electric field `vecE`, as shown

It is rotated to one of four orientations shown below. Rank the final orientations according to the change in the potential energy of the dipole-field system, most negative to most positive.

A

`(i),(ii),(iv),(iii)`

B

`(iv),(iii),(ii),(i)`

C

(i),(ii),(iii),(iv)

D

(iii),(ii)and(iv)tie,then(i)

Text Solution

Verified by Experts

The correct Answer is:
C
c. `U=-Pecos theta`
As `theta` increases `U` increases
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